Chapter I: Front Matter

THE WAR ZONE
OF THE
KAISER

_By_
CAPT. V. T. SHERMAN

Author of

BOY SCOUTS WITH JOFFRE;
SCOUTING THE BALKANS IN
A MOTOR BOAT; CAPTURING
A SPY; THE RUNAWAY BALLOON;
A LOST PATROL, ETC.

Chicago
M. A. DONOHUE & CO.

Boy Scout Series

And Nature Adventure

Written by that Great Writer for Boys

CAPT. V. T. SHERMAN

TEN TITLES TWELVE MO. CLOTH

This series of books embraces a variety of interesting and instructive stories of the kind that are so much sought after and so eagerly devoured by the youth of this country. Every live, red-blooded boy and girl in the land will want to read each book in this series. They are endorsed by Scout Masters, Educaters and Trainers of the youth, and are written along the lines that inculcate and exemplify the ideals and principals of the universally accredited

BOY SCOUT MOVEMENT

The books average from 256 to 320 pages of large, clear type, printed on a superior quality of book paper, are bound in genuine binders’ cloth, stamped from unique, appropriate dies in two colors, and each book is wrapped in an attractive, multicolored jacket printed from a special and appropriately drawn design.

LIST PRICE, 40c PER VOLUME

1—Boy Scouts with Joffre; or, In the Trenches in Belgium

2—The War Zone of the Kaiser; or, Boy Scouts in the North Sea

3—Scouting the Balkans in a Motor Boat; or, An Escape from the
Dardanelles

4—Capturing a Spy; or, A New Peril

5—The Runaway Balloon; or, The Beseiged Scouts

6—A Lost Patrol; or, Scout Tactics to the Front

7—The Boy Scout Signal; or, The Camp on the Cliff

8—An interrupted Wig Wag; or, A Boy Scout Trick

9—The Call of the Beaver Patrol; or, A Break in the Glacier

10—The Perils of an Air-ship; or, Boy Scouts in the Sky

Copyright 1913, M. A. Donohue & Co.

CONTENTS

_Chapter_ _Page_

I—A PACKAGE VANISHES 7

II—DIFFICULTIES AND DANGER 18

III—THE MAN WITH THE SCAR 30

IV—THE LENA KNOBLOCH 42

V—TWO MYSTERIOUS CHANGES 54

VI—A DIFFICULT DEPARTURE 65

VII—A WARNING FROM THE SEA 76

VIII—MORE ABOUT THE “U-13” 87

IX—A STRANGE VISIT 98

X—SHIPWRECK AND RESCUE 109

XI—A FLEET OF SUBMARINES 120

XII—A NEW “U-13” APPEARS 131

XIII—A THREATENING SITUATION 142

XIV—HELPED BY AN ENEMY 153

XV—MISTAKEN IDENTITY 165

XVI—A STRANGE DISCOVERY 176

XVII—ALONE AND HELPLESS 187

XVIII—HELP FROM A STRANGER 198

XIX—MACKINDER AGAIN 209

XX—A MYSTERIOUS CRAFT 221

XXI—A MYSTERY EXPLAINED 232

XXII—MORE MYSTERY 240

XXIII—THE MYSTERY OF THE “U-13” 246

Boy Scouts in the North Sea;

or,

The Mystery of “U-13”