CONTENTS

CHAPTER
I. [H.M.S. "POMPEY"]
II. [THE RESULT OF THE LEADING STOKER'S CURIOSITY]
III. [GREENWOOD SENIOR'S DISCOVERY]
IV. [THE SECRET PETROL-DEPÔT]
V. [EXPLANATIONS]
VI. [AN EXCELLENT NIGHT'S WORK]
VII. [THE DAY FOLLOWING]
VIII. [SPY AND SUPER-SPY]
IX. [AN ADVENTURE ON THE HILLS]
X. [THE FOILED RAID]
XI. [ONE ZEPPELIN THE LESS]
XII. [AN OCEAN DUEL]
XIII. [ADRIFT]
XIV. [A BREACH OF NEUTRALITY]
XV. [A PRISONER OF WAR]
XVI. [THE FIRST DAY OF CAPTIVITY]
XVII. [A DASH FOR LIBERTY]
XVIII. [THE DERELICT OBSERVATION BALLOON]
XIX. [THE DESERTED HOUSE]
XX. [TRESSIDAR SOLVES A MYSTERY]
XXI. [CHECKMATE]
XXII. [THE SHELL-BATTERED HOSPITAL]
XXIII. [AT AULDHAIG ONCE MORE]
XXIV. [A FIGHT TO A FINISH]
XXV. [IN THE MOMENT OF TRIUMPH]
XXVI. [THE HOME-COMING OF THE S.S. "MEROPE"]
XXVII. [A DAY ON DARTMOOR]
XXVIII. [—AND A NIGHT]
XXIX. [WHEN THE TRAWLERS SHOWED FIGHT]
XXX. [A NOVEL DUCK HUNT]
XXXI. [MONITORS IN ACTION]
XXXII. [THE "ANZAC'S" DAY]
XXXIII. [A SPLINTER OF SHELL]
XXXIV. [EXIT OBERFURST]
XXXV. [TRESSIDAR'S REWARD]
LIST OF ILLUSTRATIONS
IN COLOUR

Frontispiece
["SHE REELED HEAVILY WITH THE EFFECT OF A MORTAL BLOW"]

["A MAELSTROM OF FOAM HID THE SPOT WHERE THE PERISCOPE HAD BEEN VISIBLE".]

["THEY THREW UP THEIR ARMS AND YELLED FOR QUARTER"]

[WITH THE QUICK-FIRERS TRAINED UPON THE BULKY TARGET, NO. 445 APPROACHED WITHIN HAILING DISTANCE]

[AN OCEAN DUEL]

["'IN WITH YOU, OLD MAN!' HE EXCLAIMED"]

[A BATTLE-CRUISER SQUADRON]

["ON THE DECK WAS A GERMAN UNTER-LEUTNANT, BOUND HAND AND FOOT"]

A WATCH-DOG OF THE
NORTH SEA