Introductory material
Reading edition
CHAPTERS I. Two Boys Who Planned to Become Great II. The Fighting Chance III. Josh Owen Starts Trouble IV. The Trick of the Flashlight V. One Man's Dumfounded Face VI. Along the Trail of Trouble VII. When Thieves Fall Out VIII. A Swift Stroke for Honor IX. The Submarine Makes Its Bow to Old Ocean X. Under Water, Where Men's Nerves are Tried XI. The Try-Out in the Depths XII. The Discovery From the Conning Tower XIII. A High-Sea Mystery XIV. An Up-To-Date Revenge XV. The Courage That Rang True XVI. The Last Second of the Nick of Time XVII. In the Grip of Horror XVIII. The Last Gasp of Despair XIX. Jack Strikes the Key to the Mystery XX. "One On" the Watch Officer XXI. The Man Who Dropped the Glass XXII. A Dive That was Like Magic XXIII. Wanted, Badly—One Steward! XXIV. Conclusion