Chapter V: Book TWO: Solarite (1)

I

The lights of great Transcontinental Airport were blazing in cheering splendor. Out there in the center of the broad field a dozen men were silhouetted in the white brilliance, looking up at the sky, where the stars winked cold and clear on the jet background of the frosty night. A slim crescent of moon gleamed in the west, a sickle of light that in no way dimmed the cold flame of the brilliant stars.

One point of light now moved across the motionless field of far-off suns, flashing toward the airport in a long, swift curve. The men on the field murmured and pointed up at it as it swept low over the blazing lights of New York. Lower it swooped, the towering city behind it. Half a mile into the air the buildings rose in shining glory of colored tile that shone brightly in the sweeping play of floodlights.

One of them picked out the descending machine, and it suddenly leaped out of the darkness as a shining, streamlined cylinder, a cylinder with a great halo of blue fire, as the beam of the searchlight set it off from the jet black night.

In moments the ship was vast before the eyes of the waiting men; it had landed gently on the field, was floating smoothly, gracefully toward them.

Twenty-four men climbed from the great ship, shivering in the icy blast that swept across the field, spoke a moment with the group awaiting their arrival, then climbed quickly into the grateful warmth of a field car. In a moment they were speeding toward the lights of the field house, half a mile off.

Behind them the huge ship leaped into the sky, then suddenly pointed its nose up at an angle of thirty degrees and shot high into the air at an unbelievable speed. In an instant it was gone.

At the field house the party broke up almost immediately.

"We want to thank you, Mr. Morey, for your demonstration of the new ship tonight, and you, Dr. Arcot, for answering our many questions about it. I am sure we all appreciate the kindness you have shown the press." The reporters filed out quickly, anxious to get the news into the morning editions, for it was after one o'clock now. Each received a small slip of paper from the attendant standing at the exit, the official statement of the company. At last all had left but the six men who were responsible for the new machine.

This night had witnessed the official demonstration of the first of the Arcot-Morey molecular motion ships. Small as she was, compared to those that were to come, yet she could carry over three thousand passengers, as many as could any existing winged plane, and her speed was immensely greater. The trip from the west coast to the eastern had been made in less than one hour. At a speed close to one mile a second the great ship had shot through the thin air, twenty-five miles above the Earth.

In this vessel a huge bar of metal could be affected by an ultra-high-frequency generator. When so affected, its molecules all moved forward, taking the ship with them. Thus, a molecular motion drive vessel could, theoretically, approach the velocity of light as a limit.

"Arcot," said Morey, Senior, after the pressmen had left the room, "as president of this company I certainly want to thank you for the tremendous thing you have given us to use. You have 'sold' us this machine--but how can we repay you? Before this, time and time again, you have sold us your inventions, the ideas that have made it possible for Transcontinental to attain its present high position in world transportation. All you have ever accepted is the laboratory you use, its upkeep, and a small annual income. What can we do to show our appreciation this time?"

"Why," answered Arcot smiling, "you haven't stated the terms correctly. Actually, I have a fully equipped lab to putter around in, all the time I want for my own amusement, and all the money I want. What more could I ask?"

"I suppose that's all true--but you draw only about six thousand a year for personal expenses--a good clerk could get that--and you, admittedly the most brilliant physicist of the Earth, are satisfied! I don't feel we're paying you properly!"

Arcot's expression became suddenly serious. "You can repay me this time," he said, "for this latest discovery has made a new thing possible. I've always wanted to be able to visit other planets--as has many a scientist for the last three centuries. This machine has made it possible. If you are willing--we could start by the spring of 2117. I'm quite serious about this. With your permission, I want to start work on the first interplanetary ship. I'll need Fuller's help, of course. The proposition will be expensive, and that's where I must ask you to help me. I think, however, that it may be a paying proposition, at that, for there will certainly be something of commercial value on the other planets."

They had walked out to the shed where Arcot's private molecular motion car stood, the first machine ever built that used the heat of the sun to drive it. Thoughtfully the president of the great Transcontinental Lines looked at it. It was small compared with the great machine that had just brought them east, but of the same swift type. It was a thing of graceful beauty even on the ground, its long curving streamlines giving it wonderful symmetry. They stood in thoughtful silence for a minute--the young men eager to hear the verdict of their prospective backer. Morey, always rather slow of speech, took an unusually long time to answer.

"If it were only money you asked for, Arcot, I'd gladly give you double the sum, but that isn't the case. I know perfectly well that if you do go, my son will go with you, and Fuller and Wade will naturally go too." He looked at each in turn. "Each of you has come to mean a lot to me. You and Fuller have known Bob since college days. I've known Wade only three months, but every day I grow to like him more. There's no denying the fact that any such trip is a terrifically dangerous proposition. But if you were lost, there would be more than my personal loss. We would lose some of the most brilliant men on Earth. You, for instance, are conceded as being the world's most brilliant physicist; Fuller is one of the greatest designing engineers; Wade is rapidly rising into prominence as a chemist and as a physicist; and my son is certainly a good mathematician."

He paused, frowning, weighing the situation. "But you men should know how to get out of scrapes just that much better. Certainly there are few men on Earth who would not be willing to back such a group of men--or any one of you, for that matter! I'll back your trip!" His words became more facetious. "I know that Arcot and you, Bob, can handle a gun fairly well, I don't know so much about Wade and Fuller. What experience have you two had?"

Fuller shook his head. "I think I'll fit best in the galley on the trip, Mr. Morey. I've done the cooking on a number of camping trips, and food is an important factor in the success of any expedition. I can shoot a bit, too."

Wade spoke rather hesitantly. "I come from the west, and have had a good bit of fun with a gun in the Rockies; there are still some mountain lions and some deer there, you know. I also have a sneaking acquaintance with the new gun, which Arcot developed in connection with his molecular motion. But there is so little you know about me--and most of it bad--I don't see how I really get in on this opportunity--but," he added hastily, "I certainly don't intend to keep the old boy knocking--I'm with you, since I'm invited!"

Arcot smiled. "Then you'll definitely support us?"

"Yes, I will," replied Morey, Senior, seriously, "for I think it's worth doing."

The four young men climbed into the ship, to start for their apartment. Arcot was piloting, and under his sure touch the ship sped out into the cold night air, then up through the atmosphere, till they hung poised at a height of fifty miles on the upper edge of the airy blanket. They looked out in silent thought at the magnificent blazing stars of space. Here, where the dust-laden air could no longer mask their true colors, the stars shone unwinkingly, steadily, and in a glory that earth-bound men had never seen before. They shone in a wonderous riot of color, as varied and as beautiful as the display of colored floodlights in some great city. They were tiny pinpoints of radiance, red, green, orange, and yellow, shining with intense brilliance.

Slowly Arcot let the machine settle to the blazing city miles below.

"I love to come out here and look at those cold, pinpoint lights; they seem to draw me--the lure of other worlds. I've always had a sense of unfulfilled longing--the desire to go out there--and it's always been so hopeless. Now--I'll be out there by next spring!" Arcot paused and looked up at the mighty field of stars that arched over his head to be lost on either horizon. A wonderful night!

"Where shall we go first, Dick?" asked Wade softly as he gazed out at the far-off suns of space, his voice unconsciously hushed by the grandeur of the spectacle.

"I've thought of that for the last four months, and now that we are definitely going to go, we'll have to make a decision. Actually, it won't be too hard to decide. Of course we can't leave the solar system. And the outer planets are so far away that I think we had better wait till later trips. That leaves the choice really between Mars, Venus, and Mercury. Mercury isn't practical since it's so close to the sun. We know a fair bit about Mars from telescopic observation, while Venus, wrapped in perpetual cloud, is a mystery. What do you vote?"

"Well," said Morey, "it seems to me it's more fun to explore a completely unknown planet than one that can be observed telescopically. I vote Venus." Each of the others agreed with Morey that Venus was the logical choice.

By this time the machine had sunk to the roof of their apartment, and the men disembarked and entered. The next day they were to start the actual work of designing the space ship.

II

"When we start this work," Arcot began next morning, "we obviously want to design the ship for the conditions we expect to meet, and for maximum convenience and safety. I believe I've thought about this trip longer than the rest of you, so I'll present my ideas first.

"We don't actually _know_ anything about conditions on Venus, since no one has actually been there. Venus is probably a younger planet than Earth. It's far nearer the sun than we are, and it gets twice the heat we do. In the long-gone time when the planets were cooling I believe Venus required far longer than Earth, for the inpouring heat would retard its cooling. The surface temperature is probably about 150 degrees Fahrenheit.

"There is little land, probably, for with the cloud-mass covering Venus as it does, it's logical to visualize tremendous seas. What life has developed must be largely aquatic, and the land is probably far behind us in evolution. Of course, Venus is the planet of mystery--we don't know; we can only guess. But we do know what things we are going to need to cross space.

"Obviously, the main driving force will be the power units. These will get their energy from the rays of the sun by absorbing them in copper discs about twelve feet in diameter--the ship will have to be more of a disc than a cylinder. I think a ship a hundred and eighty feet long, fifty feet wide, and twenty feet deep will be about the best dimensions. The power units will be strung along the top of the ship in double rows--one down each side of the hull. In the middle will be a series of fused quartz windows, opening into a large room just under the outer shell. We'll obviously need some source of power to activate the power tubes that run the molecular motion power units. We'll have a generator run by molecular motion power units in here, absorbing its heat from the atmosphere in this room. The air will be heated by the rays of the sun, of course, and in this way we'll get all our power from the sun itself.

"Since this absorption of energy might result in making the ship too cool, due to the radiation of the side away from the sun, we'll polish it, and thus reduce the unlighted side's radiation.

"The power units will not be able to steer us in space, due to their position, and those on the sides, which will steer us in the atmosphere by the usual method, will be unable to get the sun's power; they'll be shaded. For steering in space, we'll use atomic hydrogen rockets, storing the atomic gas by the Wade method in tanks in the hold. We'll also have a battery down there for starting the generator and for emergencies.

"For protection against meteors, we'll use radar. If anything comes within a dozen miles of us, the radar unit covering that sector will at once set automatic machinery in operation, and the rockets will shoot the ship out of the path of the meteor."

All that day Arcot and the others discussed the various pieces of apparatus they would need, and toward evening Fuller began to draw rough sketches of the different mechanisms that had been agreed upon.

The next day, by late afternoon, they had planned the rough details of the ship and had begun the greater task of calculating the stresses and the power factors.

"We won't need any tremendous strength for the ship while it is in space," Arcot commented, "for then there will be little strain on it. It will be weightless from the start, and the gentle acceleration will not strain it in the least, but we must have strength, so that it can maneuver in the atmosphere.

"We'll leave Earth by centrifugal force, for I can make much better speed in the atmosphere where there is plenty of power to draw on; outside I must depend solely on sunlight. We'll circle the Earth, forming an orbit just within the atmosphere, at five miles a second. We'll gradually increase the speed to about ten miles a second, at which point the ship would normally fly off into space under its own centrifugal force. With the power units we'll prevent its release until the proper moment. When we release it, it will be entirely free of Earth, and no more work will be needed to overcome Earth's pull."

The planning continued with exasperating slowness. The details of the work were complex, for all the machines were totally new. Several weeks passed before even the power units could be ordered and the first work on the ship started. After that orders for materials left the office daily. Still, it was late in November before the last order was sent out.

Now they must begin work on other phases of the expedition--food supplies and the standard parts of the equipment.

In the interval Arcot had decided to make a special ventilated suit for use on Venus. This was to make use of a small molecular motion director apparatus to cool the air, and blow it through the suit. The apparatus consisted of a small compressed air-driven generator and a power tube bank that could be carried on the back.

"Arcot," Wade said when he saw the apparatus completed and the testing machine ready, "I've just noticed how similar this is to the portable invisibility apparatus I developed as the Pirate. I wonder if it might not be handy at times to be invisible--we could incorporate that with a slight change. It wouldn't add more than five pounds, and those tubes you are using I'm sure are easily strong enough to carry the extra load."

"Great idea, Wade," said Arcot. "It might be very useful if we met hostile natives. The disappearance stunt might make us gods or something to primitive beings. And now that you mention it, I think we can install the apparatus in the ship. It will require almost no power, and might save our lives some time."

The work went forward steadily at the great Transcontinental Shops where the space ship was being built. Its construction was being kept as much of a secret as possible, for Arcot feared the interference of the crowds that would be sure to collect if the facts were known, and since the shops directly joined the airfield, it meant that there would be helicopters buzzing about the Transatlantic and Transcontinental planes.

The work to be done required the most careful manipulation and workmanship, for one defect could mean death. They calculated six weeks for the trip, and in the time before they could reach either planet, much might happen to a crippled ship.

To the men who were making the trip, the waiting seemed most exasperating, and they spent the days before they could begin the installation of the electrical apparatus in purchasing the necessary standard equipment; the standard coils, tubes, condensers, the canned food supplies, clothes, everything that they could imagine as of possible utility. They were making the ship with a great deal of empty storage space, for Arcot hoped the trip would be a financial success, particularly supplying much-needed metals. Many vital elements were already excessively scarce, and no satisfactory substitutes had been found.

On the outward trip some of this space would be filled with the many things they would consume en route. In addition they were carrying a great many spare parts, spare tubes, spare power units, spare condensers--a thousand and one odd parts. Arcot intended that they should be able to make an entire new power switchboard and motion director unit if anything should go wrong, and he certainly had all the apparatus.

At last came the day when the final connection had been soldered, and the last joint welded. The atomic hydrogen tanks were full, and under the ship's own power the oxygen tanks were filled and the batteries charged. They were ready for a test flight!

The great ship rested on the floor of the shed now, awaiting the start.

"Oh fellows--come here a minute!" Arcot called to the other members of the party. "I want to show you something."

The three walked quickly to the bow where Arcot stood, and following the line of his vision, looked in wonder to see that everything was right. They watched curiously as he drew from his coat a large glass bottle, tightly sealed.

"What's that for?" asked Wade curiously.

"We're about to start on the first cruise, and I've been wondering if it isn't time we gave the ship a name."

"Great--I'd been thinking of that too--what are we going to name her?"

"Well," said Arcot, "I had been thinking of Alexander--he longed for other worlds to conquer!"

"Not bad," Morey commented. "I have been thinking of naming it too--I guess we all have--but I was thinking of Santa Maria--the first ship to discover the New World."

"I was thinking more of its home," said Wade. "How about calling it Terrestrian?"

"Well--it's your turn, Fuller--you designed it. What do you suggest for your masterpiece?" asked Arcot.

"I was thinking also of its home--the home it will never leave. I like to think that we might find people on Venus, and I would like to have a name on it that might be translatable into more friendly and less foreign terms--why not call it Solarite?"

"Solarite--a member of the solar system--it will be that, always. It will be a world unto itself when it makes its trips--it will take up an orbit about the sun--a true member of the solar system. I like it!" Arcot turned to the others. "How about it?" It was agreed upon unanimously.

"But I'm still curious about that glass bottle, so carefully sealed." Morey commented with a puzzled smile. "What's in it? Some kind of gas?"

"Wrong--no gas--practically nothing at all, in fact. What more appropriate for christening a space ship than a bottle of hard vacuum?

"We can't have a pretty girl christen this ship, that's sure. A flying bachelor's apartment christened by a mere woman? Never! We will have the foreman of the works here do that. Since we can't have the ship slide down the ways or anything, we will get inside and move it when he smashes the bottle. But in the meantime, let's have a symbol set in contrasting metal on the bow. We can have a blazing sun, with nine planets circling it, the Earth indicated conspicuously; and below it the word SOLARITE."

III

It was shortly after noon when the newly christened _Solarite_ left on its first trip into space. The sun was a great ball of fire low in the west when they returned, dropping plummet-like from the depths of space, the rush of the air about the hull, a long scream that mounted from a half-heard sound in the outer limits of the Earth's atmosphere, to a roar of tortured air as the ship dropped swiftly to the field and shot into the hanger. Instantly the crew darted to the side of the great cylinder as the door of the ship opened.

Fuller appeared in the opening, and at the first glimpse of his face, the hanger crew knew something was wrong. "Hey, Jackson," Fuller called, "get the field doctor--Arcot had a little accident out there in space!" In moments the man designated returned with the doctor, leading him swiftly down the long metal corridor of the _Solarite_ to Arcot's room aboard.

There was a mean-looking cut in Arcot's scalp, but a quick, sure examination by the doctor revealed that there appeared to be no serious injury. He had been knocked unconscious by the blow that made the cut, and he had not yet recovered his senses.

"How did this happen?" asked the doctor as he bathed the cut and deftly bandaged it.

Morey explained: "There's a device aboard whose job it is to get us out of the way of stray meteors, and it works automatically. Arcot and I were just changing places at the controls. While neither of us was strapped into our seats, a meteor came within range and the rocket tubes shot the car out of the way. We both went tumbling head over heels and Arcot landed on his ear. I was luckier, and was able to break my fall with my hands, but it was a mean fall--at our speed we had about double weight, so, though it was only about seven feet, we might as well have fallen fourteen. We took turns piloting the ship, and Arcot was about to bring us back when that shock just about shook us all over the ship. We will have to make some changes. It does its job--but we need warning enough to grab hold."

The doctor was through now, and he began to revive his patient. In a moment he stirred and raised his hand to feel the sore spot. In ten minutes he was conversing with his friends, apparently none the worse except for a very severe headache. The doctor gave him a mild opiate, and sent him to bed to sleep off the effects of the blow.

* * * * *

With the ship fully equipped, tested and checked in every possible way, the time for leaving was set for the following Saturday, three days off. Great supplies of stores had to be carried aboard in the meantime. Care had to be exercised in this work, lest the cargo slip free under varying acceleration of the _Solarite_, and batter itself to bits, or even wreck some vital part of the ship. At noon on the day chosen, the first ship ever to leave the bounds of the Earth's gravity was ready to start!

Gently the heavily laden _Solarite_ rose from the hangar floor, and slowly floated out into the bright sunshine of the early February day. Beside it rode the little ship that Arcot had first built, piloted by the father of the inventor. With him rode the elder Morey and a dozen newsmen. The little ship was badly crowded now as they rose slowly, high into the upper reaches of the Earth's atmosphere. The sky about them was growing dark--they were going into space!

At last they reached the absolute ceiling of the smaller ship, and it hung there while the _Solarite_ went a few miles higher; then slowly, but ever faster and faster they were plunging ahead, gathering speed.

They watched the radio speedometer creep up--1-2-3-4-5-6--steadily it rose as the acceleration pressed them hard against the back of the seats--8-9--still it rose as the hum of the generator became a low snarl--10-11-12--they were rocketing at twelve miles a second, the tenuous air about the ship shrieking in a thin scream of protest as it parted on the streamlined bow.

Slowly the speed rose--reached fifteen miles a second. The sun's pull became steadily more powerful; they were falling toward the fiery sphere, away from the Earth. A microphone recessed in the outer wall brought them the fading whisper of air from outside. Arcot shouted a sudden warning:

"Hold on--we're going to lose all weight--out into space!"

There was a click, and the angry snarl of the overworked generator died in an instant as the thudding relays cut it out of the circuit. Simultaneously the air scoop which had carried air to the generator switched off, transferring to solar heat as a source of power. They seemed to be falling with terrific and ever-increasing speed. They looked down--saw the Earth shrinking visibly as they shot away at more than five miles a second; they were traveling fifteen miles a second ahead and five a second straight up.

The men watched with intensest interest as the heavens opened up before them--they could see stars now a scant degree from the sun itself, for no air diffused its blinding glory. The heat of the rays seemed to burn them; there was a prickling pleasantness to it now, as they looked at the mighty sea of flame through smoked glasses. The vast arms of the corona reached out like the tentacles of some fiery octopus through thousands of miles of space--huge arms of flaming gas that writhed out as though to reach and drag back the whirling planets to the parent body. All about the mighty sphere, stretching far into space, a wan glow seemed to ebb and flow, a kaleidoscope of swiftly changing color. It was the zodiacal light, an aurora borealis on a scale inconceivable!

Arcot worked rapidly with the controls, the absence of weight that gave that continued sense of an unending fall, aiding him and his assistants in their rapid setting of the controls.

At last the work was done and the ship flashed on its way under the control of the instruments that would guide it across all the millions of miles of space and land it on Venus with unerring certainty. The photo-electric telescopic eye watched the planet constantly, keeping the ship surely and accurately on the course that would get them to the distant planet in the shortest possible time.

Work thereafter became routine requiring a minimum of effort, and the men could rest and use their time to observe the beauties of the skies as no man had ever seen them during all the billions of years of time that this solar system has existed. The lack of atmosphere made it possible to use a power of magnification that no terrestrial telescope may use. The blurred outlines produced by the shifting air prohibits magnifications of more than a few hundred diameters, but here in space they could use the greatest power of their telescope. With it they could look at Mars and see it more clearly than any other man had ever seen it, despite the fact that it was now over two hundred million miles away.

But though they spent much time taking photographs of the planets and of the moon, and in making spectrum analyses of the sun, time passed very slowly. Day after day they saw measured on the clocks, but they stayed awake, finding they needed little sleep, for they wasted no physical energy. Their weightlessness eliminated fatigue. However, they determined that during the twelve hours before reaching Venus they must be thoroughly alert, so they tried to sleep in pairs. Arcot and Morey were the first to seek slumber--but Morpheus seemed to be a mundane god, for he did not reward them. At last it became necessary for them to take a mild opiate, for their muscles refused to permit their tired brains to sleep. It was twelve hours later when they awoke, to relieve Wade and Fuller.

They spent most of the twelve hours of their routine watch in playing games of chess. There was little to be done. The silver globe before them seemed unchanging, for they were still so far away it seemed little larger than the moon does when seen from Earth.

But at last it was time for the effects of the mild drug to wear off, and for Wade and Fuller to awaken from their sleep.

"Morey--I've an idea!" There was an expression of perfect innocence on Arcot's face--but a twinkle of humor in his eyes. "I wonder if it might not be interesting to observe the reactions of a man waking suddenly from sleep to find himself alone in space?" He stared thoughtfully at the control that would make the ship perfectly transparent, perfectly invisible.

"I wonder if it would?" said Morey grasping Arcot's idea. "What do you say we try it?" Arcot turned the little switch--and where there had been the ship, it was no more--it was gone!

Fuller stirred uneasily in his bed, tightly strapped as he was. The effects of the drug were wearing off. Sleepily he yawned--stretched, and blindly, his heavy eyes still closed, released the straps that held him in bed. Yawning widely he opened his eyes--with a sudden start sat upright--then, with an excellent imitation of an Indian on the warpath, he leaped from his bed, and started to run wildly across the floor. His eyes were raised to the place where the ceiling should have been--he called lustily in alarm--then suddenly he was flying up--and crashed heavily against the invisible ceiling! His face was a picture of utter astonishment as he fell lightly to the floor--then slowly it changed, and took on a chagrined smile--he understood!

He spun around as loud cries suddenly resounded from Wade's room across the hall--then there was a dull thud, as he too, forgetting the weightlessness, jumped and hit the ceiling. Then the cries were gone, like the snuffing of a candle. From the control room there rose loud laughter--and a moment later they felt more normal, as they again saw the four strong walls about them.

Wade sighed heavily and shook his head.

They were approaching the planet visibly now. In the twelve hours that had passed they had covered a million miles, for now they were falling toward the planet under its attraction. It glowed before them now in wonderous splendour, a mighty disc of molten silver.

For the last twenty-four hours they had been reducing their speed relative to Venus, to insure their forming an orbit about the planet, rather than shoot around it and back into space. Their velocity had been over a hundred miles a second part of the way, but now it had been reduced to ten. The gravity of the planet was urging them forward at ever increasing speed, and their problem became more acute moment by moment.

"We'll never make it on the power units alone, out here in space," said Arcot seriously. "We'll just shoot around the planet. I'll tell you how we can do it, though. We'll circle around it, entering its atmosphere on the daylight side, and shoot into the upper limits of its atmosphere. There the power units can find some heat to work on, and we can really slow down. But we'll have to use the rocket tubes to get the acceleration we'll need to drive the ship into the air."

There was a sudden clanging of a bell, and everyone dived for a hold, and held on tightly. An instant later there was a terrific wrench as the rocket jets threw the plane out of the way of a meteor.

"We're getting near a planet. This is the third meteor we've met since we were more than a million miles from Earth. Venus and Earth and all the planets act like giant vacuum cleaners of space, pulling into themselves all the space debris and meteors within millions of miles by their gravitational attraction."

Swiftly the planet expanded below them--growing vaster with each passing moment. It had changed from a disc to a globe, and now, as the molten silver of its surface seemed swiftly clouding, it turned grey; then they saw its true appearance, a vast field of rolling, billowing clouds!

The _Solarite_ was shooting around the planet now at ten miles a second, far more than enough to carry them away from the planet again, out into space once more if their speed was not checked.

"Hold on everybody," Arcot called. "We're going to turn toward the planet now!" He depressed a small lever--there was a sudden shock, and all the space about them seemed to burst into huge, deep-red atomic hydrogen flames.

The _Solarite_ reeled under the sudden pressure, but the heavy gyroscopic stabilizers caught it, held it, and the ship remained on an even keel. Then suddenly there came to the ears of the men a long drawn whine, faint--almost inaudible--and the ship began slowing down. The _Solarite_ had entered the atmosphere of Venus--the first man-made machine to thus penetrate the air of another world!

Quickly Arcot snapped open the control that had kept the rockets flaming, turning the ship to the planet--driving it into the atmosphere. Now they could get their power from the air that each instant grew more dense about them.

"Wade--in the power room--emergency control post--Morey--control board there--hang on, for we'll have to use some husky accelerations."

Instantly the two men sprang for their posts--literally diving, for they were still almost weightless.

Arcot pulled another lever--there was a dull snap as a relay in the power room responded--the lights wavered--dimmed--then the generator was once more humming smoothly--working on the atmosphere of Venus! In a moment the power units were again operating, and now as they sucked a plentitude of power from the surrounding air, they produced a force that made the men cling to their holds with almost frantic force. Around them the rapidly increasing density of the air made the whine grow to a roar; the temperature within the ship rose slowly, warmed by friction with the air, despite the extreme cold at this altitude, more than seventy-five miles above the surface of the planet.

They began dropping rapidly now--their radio-speedometer had fallen from ten to nine--then slowly, but faster and faster as more heat could be extracted from the air, it had fallen 8--7--6--5--4. Now they were well below orbital speed, falling under the influence of the planet. The struggle was over--the men relaxed. The ship ran quietly now, the smooth hum of the air rushing over the great power units coming softly through the speaker to their ears, a humming melody--the song of a new world.

IV

Suddenly the blazing sun was gone and they were floating in a vast world of rolling mists--mists that brushed the car with tiny clicks, which, with the millions of particles that struck simultaneously, merged into a steady roar.

"Ice--ice clouds!" Morey exclaimed.

Arcot nodded. "We'll drop below the clouds; they're probably miles deep. Look, already they're changing--snow now--in a moment it will be water--then it'll clear away and we'll actually see Venus!"

For ten miles--an endless distance it seemed--they dropped through clouds utterly impenetrable to the eye. Then gradually the clouds thinned; there appeared brief clear spots, spots into which they could see short distances--then here and there they caught glimpses of green below. Was it water--or land?

With a suddenness that startled them, they were out of the clouds, shooting smoothly and swiftly above a broad plain. It seemed to stretch for endless miles across the globe, to be lost in the far distance to east and west; but to the north they saw a low range of hills that rose blue and misty in the distance.

"Venus! We made it!" Morey cried jubilantly. "The first men ever to leave Earth--I'm going to start the old sender and radio back home! Man--look at that stretch of plain!" He jumped to his feet and started across the control room. "Lord--I feel like of ton of lead now--I sure am out of condition for walking after all that time just floating!"

Arcot raised a restraining hand. "Whoa--wait a minute there, Morey--you won't get anything through to them now. The Earth is on the other side of Venus--it's on the night side, remember--and we're on the day side. In about twelve hours we'll be able to send a message. In the meantime, take the controls while I make a test of the air here, will you?"

Relieved of the controls, Arcot rose and walked down the corridor to the power room where the chemical laboratory had been set up. Wade had already collected a dozen samples of air, and was working on them.

"How is it--what have you tested for so far?" asked Arcot.

"Oxygen and CO_{2}. The oxygen is about twenty-two per cent, or considering the slightly lower air pressure here, we will have just about the right amount of oxygen. The CO_{2} is about one-tenth of one per cent. The atmosphere is O.K. for terrestrial life apparently; that mouse there is living quite happily. Whatever the other seventy-five per cent or so of diluting gas is, I don't know, but it isn't nitrogen."

Briefly Arcot and Wade discussed the unusual atmosphere, finally deciding that the inert gas was argon.

"No great amount of nitrogen," Arcot concluded. "That means that life will have a sweet time extracting it from the air--but wherever there is life, it finds a way to do the impossible. Test it more accurately, will you--you try for nitrogen and I'll try the component inert gasses."

They ran the analyses rapidly, and in a very short time--less than an hour--their results stood at 23 per cent oxygen, .1 per cent carbon dioxide, 68 per cent argon, 6 per cent nitrogen, 2 per cent helium, 5 per cent neon, .05 per cent hydrogen, and the rest krypton and xenon apparently. The analyses of these inert gasses had to be done rather roughly in this short time, but it was sufficient to balance fairly accurately.

The two chemists reported back to the control cabin.

"Well, we'll be able to breathe the atmosphere of Venus with ease. I believe we can go on now. I have been surprised to see no water in sight, but I think I see my mistake now. You know the Mississippi has its mouth further from the center of the Earth than its source; it flows up hill! The answer is, of course, that the centrifugal force of the Earth's spin impels it to flow that way. Similarly, I am sure now that we will find that Venus has a vast belt of water about the middle, and to the north and south there will be two great caps of dry land. We are on the northern cap.

"We have the microphone turned way down. Let's step up the power a bit and see if there are any sounds outside," said Arcot and walked over to the power control switch. An instant later a low hum came from the loudspeaker. There was a light breeze blowing. In the distance, forming a dull background for the hum, there came a low rumbling that seemed punctuated now and then by a greater sound.

"Must be a long way off," said Arcot, a puzzled frown on his face. "Swing the ship around so we can see in what direction the sound is loudest," he suggested.

Slowly Morey swung the ship around on its vertical axis. Without a doubt, something off in the direction of the hills was making a considerable noise.

"Arcot, if that's a fight between two animals--two of those giant animals that you said might be here--I don't care to get near them!" Fuller's narrowed eyes strove to penetrate the haze that screened the low hills in the blue distance.

The microphone was shut off while the _Solarite_ shot swiftly forward toward the source of the sound. Quickly the hills grew, the blue mistiness disappearing, and the jagged mounds revealing themselves as bleak harsh rock. As they drew nearer they saw beyond the hills, intermittent flashes of brilliant light, heard shattering blasts of sound.

"A thunderstorm!" Wade began, but Arcot interrupted.

"Not so fast, Wade--Fuller's animal _is_ there--the only animal in all creation that can make a noise like that! Look through the telescope--see those dots wheeling about there above the flashing lights? The only animal that can make that racket is man! There are men over there--and they aren't in a playful mood! Turn on the invisibility while we can, Morey--and let's get nearer!"

"Look out--here we go!" Morey began to close a tiny switch set in one side of the instrument panel--then, before the relay below could move, he had flipped it back.

"Here, you take it, Arcot--you always think about two steps ahead of me--you're quicker and know the machine better anyway."

Quickly the two men exchanged places.

"I don't know about that, Morey," said a voice from vacancy, for Arcot had at once thrown the ship into invisibility. "The longer we're here, the more mistakes I see we made in our calculations. I see what put me off so badly on my estimate of the intelligence of life found here! The sun gives it a double dose of heat--but also a double dose of other radiations--some of which evidently speed up evolution. Anyway, we may be able to find friends here more quickly if we aid one side or the other in the very lively battle going on there. Before we go any further, what's our decision?"

"I think it is a fine idea," said Fuller. "But which side are we to aid--and what are the sides? We haven't even seen them yet. Let's go nearer and take a good look."

"Yes--but are we going to join either side after looking?"

"Oh, that's unanimous!" said Wade, excitedly.

The invisible ship darted forward. They sped past the barrier of low hills, and were again high above a broad plain. With a startled gasp, Arcot cut their speed. There, floating high in the air, above a magnificent city, was a machine such as no man had ever before seen! It was a titanic airplane--monstrous, gargantuan, and every other word that denoted immensity. Fully three-quarters of a mile the huge metal wings stretched out in the dull light of the cloudy Venerian day; a machine that seemed to dwarf even the vast city beneath it. The roar of its mighty propellers was a rumbling thunder to the men in the _Solarite_. From it came the flashing bursts of flame.

On closer inspection, the watchers saw what seemed to be a swarm of tiny gnats flying about the mighty plane. They appeared to be attacking the giant as vainly as gnats might attack an eagle, for they could not damage the giant machine. The flashing bombs burst in blasts of yellow flame as harmlessly as so many firecrackers.

All that mighty plane was covered with heavy metal plates, fully ten inches thick, and of metal so tough that when the powerful bombs hit it they made no impression, though they blasted tremendous craters in the soil below. From it poured a steady stream of bombs that burst with a great flash of heat and light, and in an instant the tiny planes they struck streaked down as incandescent masses of metal.

Yet the giant seemed unable to approach the city--or was it defending it? No, for it was from the city that the vainly courageous little ships poured out. But certainly it was not these ships that kept the titanic battleship of the air at bay!

Tensely the men watched the uneven conflict. The rain of bombs continued, though all fell short of the city. But slowly around the metropolis there appeared an area of flaring, molten lava, and steadily this moved toward the beautiful buildings. Suddenly the battleship turned toward the city and made a short dash inward on its circling path. As though awaiting this maneuver, a battery of hissing, flaming swords of white light flashed upward, a few hundred feet from the ring of molten rock. As the titanic plane rolled, side-slipped out of the way, they passed, harmlessly, barely missing a monstrous wing.

"Which?" Arcot demanded. "I say the city. No one should destroy anything so magnificent."

Not a dissenting voice was raised, so Arcot sent the _Solarite_ nearer.

"But what in the world can we do to that huge thing?" Fuller's voice came eerily out of the emptiness. "It has perfect invulnerability through size alone."

There was sudden silence among the Terrestrials as one of the tiny planes darted forward and dove at full speed directly toward one of the giant's propellers. There were fifty of these strung along each great wing. If enough of them could be destroyed, the plane must crash. There came a terrific crash--a flare of light--and splintered fragments of flaming wreckage plummeted down. Yet the mighty blades continued whirling as smoothly as ever!

What could the _Solarite_ do against the giant monoplane? Evidently Arcot had a plan. Under his touch their machine darted high into the sky above the great plane. There was a full mile between them when he released the sustaining force of the _Solarite_ and let it drop, straight toward the source of the battle--falling freely, ever more and more rapidly. They were rushing at the mighty plane below at a pace that made their hearts seem to pause--then suddenly Arcot cried out, "Hold on--here we stop!"

They seemed a scant hundred feet from the broad metal wings of the unsuspecting plane, when suddenly there was a tremendous jerk, and each man felt himself pressed to the floor beneath a terrific weight that made their backs crack with the load. Doggedly they fought to retain their senses; the blackness receded.

Below them they saw only a mighty sea of roaring red flames--a hell of blazing gas that roared like a score of bombs set off at once. The _Solarite_ was sitting down on her rocket jets! All six of the rocket tubes in the base of the ship had been opened wide, and streaming from them in a furious blast of incandescent gas, the atomic hydrogen shot out in a mighty column of gas at 3500 degrees centigrade. Where the gas touched it, the great plane flared to incandescence; and in an immeasurable interval the fall of the _Solarite_ ended, and it rebounded high into the air. Arcot, struggling against the weight of six gravities, pulled shut the little control that had sent those mighty torches blasting out. An instant later they sped away lest the plane shoot toward the gas columns.

From a safe distance they looked back at their work. No longer was the mighty plane unscathed, invulnerable, for now in its top gaped six great craters of incandescent metal that almost touched and coalesced. The great plane itself reeled, staggering, plunging downward; but long before it reached the hard soil below, it was brought into level flight, and despite many dead engines, it circled and fled toward the south. The horde of small planes followed, dropping a rain of bombs into the glowing pits in the ship, releasing their fury in its interior. In moments the beings manning the marauder had to a large extent recovered from the shock of the attack and were fighting back. In a moment--just before the ship passed over the horizon and out of sight--the Terrestrians saw the great props that had been idle, suddenly leap into motion, and in an instant the giant had left its attackers behind--fleeing from its invisible foe.

Under Arcot's guidance the ship from Earth, still invisible, returned to the approximate spot where they had destroyed the invulnerability of the Giant. Then suddenly, out of nothing, the _Solarite_ appeared. In an instant a dozen of the tiny two-man planes darted toward it. Just that they might recognize it, Arcot shot it up a bit higher with the aid of the keel rockets at one-third power. The typical reddish flame of atomic hydrogen, he knew, would be instantaneously recognizable.

Little these planes were, but shaped like darts, and swifter than any plane of Earth. They shot along at 1000 miles an hour readily, as Arcot soon found out. It was not a minute before they had formed a long line that circled the _Solarite_ at minimum speed, then started off in the direction of the city. On impulse Arcot followed after them, and instantly the planes increased their velocity, swiftly reaching 1000 miles per hour.

The city they were approaching was an inspiring sight. Mighty towers swept graceful lines a half mile in the air, their brightly colored walls gleaming in rainbow hues, giving the entire city the aspect of a gigantic jewel--a single architectural unit. Here was symmetry and order, with every unit in the city built around the gigantic central edifice that rose, a tremendous tower of black and gold, a full half mile in the air.

The outer parts of the city were evidently the residential districts, the low buildings and the wide streets with the little green lawns showing the care of the individual owner. Then came the apartment houses and the small stores; these rose in gentle slopes, higher and higher, merging at last with the mighty central pinnacle of beauty. The city was designed as a whole, not in a multitude of individually beautiful, but inharmonious units, like some wild mixture of melodies, each in itself beautiful, but mutually discordant.

V

The Terrestrians followed their escort high above these great buildings, heading toward the great central tower. In a moment they were above it, and in perfect order the ships of the Venerians shot down to land smoothly, but at high speed. On the roof of the building they slowed with startling rapidity, held back by electromagnets under the top dressing of the roof landing, as Arcot learned later.

"We can't land on that--this thing weighs too much--we'd probably sink right through it! The street looks wide enough for us to land there." Arcot maneuvered the _Solarite_ over the edge of the roof, and dropped it swiftly down the half mile to the ground below. Just above the street, he leveled off, and descended slowly, giving the hurrying crowds plenty of time to get from beneath it.

Landing finally, he looked curiously at the mass of Venerians who had gathered in the busy street, coming out of buildings where they evidently had sought shelter during the raid. The crowd grew rapidly as the Terrestrians watched them--people of a new world.

"Why," exclaimed Fuller in startled surprise, "they look almost like us!"

"Why not?" laughed Arcot. "Is there any particular reason why they shouldn't look like us? Venus and Earth are very nearly the same size, and are planets of the same parent sun. Physical conditions here appear to be very similar to conditions back home, and if there's anything to Svend Arrehenius' theory of life spores being sent from world to world by sunlight, there's no reason why humanoid races cannot be found throughout the universe. On worlds, that is, suitable for the development of such life forms."

"Look at the size of 'em," Fuller commented.

Their size was certainly worth noting, for in all that crowd only the obviously young were less than six feet tall. The average seemed to be seven feet--well-built men and women with unusually large chests, who would have seemed very human indeed, but for a ghastly, death-like blue tinge to their skin. Even their lips were as bright a blue as man's lips are red. The teeth seemed to be as white as any human's, but their mouths were blue.

"They look as if they'd all been eating blueberries!" laughed Wade. "I wonder what makes their blood blue? I've heard of blue-blooded families, but these are the first I've ever seen!"