CONTENTS.
| CHAPTER | |
| I. | [Foul Play in the Engine-room] |
| II. | [On the Scent] |
| III. | [The Declaration of War] |
| IV. | [A Double Arrest] |
| V. | [Boarded] |
| VI. | [An Ocean Duel] |
| VII. | [Von Eckenhardt Scores] |
| VIII. | [The Dutch Trawler] |
| IX. | [The Secret Wireless] |
| X. | [H.M.S. "Strongbow" Sails] |
| XI. | [All in a Day's Work] |
| XII. | [Mined] |
| XIII. | [The Raid on Scarborough] |
| XIV. | [The End of the "Terrier"] |
| XV. | [Vice Versâ] |
| XVI. | [The Flooring of Mr. McNab] |
| XVII. | [The End of the "Bluecher"] |
| XVIII. | [Derelicts] |
| XIX. | [The Submarine Scores] |
| XX. | [A Duel with a Zeppelin] |
| XXI. | [The Last of the "Syntax"] |
| XXII. | [The Tables Turned] |
| XXIII. | [The Struggle in the Cutting] |
| XXIV. | [The "Strongbow's" Prize] |
| XXV. | [The Wreck] |
| XXVI. | ["The Price of Admiralty"] |
| XXVII. | ["Mephisto" and the Submarine] |
| XXVIII. | [The Foiled Air Raid] |
| XXIX. | ["Lieutenant Aubyn, R.N., D.S.O."] |