6CHAPTER VI. JACK MAKES A PROMISE.
22CHAPTER XXII. A NARROW ESCAPE.
7CHAPTER VII. THE LAUNCHING OF THE MODEL.
23CHAPTER XXIII. THE “WHITE SHARK” AND THE SQUADRON.
8CHAPTER VIII. JUPE BATTLES WITH A WATER MONSTER.
24CHAPTER XXIV. A MYSTERY ADRIFT.
9CHAPTER IX. OFF ON THE STRANGEST CRAFT ON RECORD.
25CHAPTER XXV. LOST IN THE FOG.
10CHAPTER X. IN DIRE DANGER.
26CHAPTER XXVI. “A PHANTOM OF LIGHT.”
11CHAPTER XI. TOM’S PLAN FOR RESCUE.
27CHAPTER XXVII. LAND IS SIGHTED.
12CHAPTER XII. A BRITISH SKIPPER.
28CHAPTER XXVIII. A SINGLE CHANCE.
13CHAPTER XIII. AN IMPORTANT TELEGRAM.
29CHAPTER XXIX. A FORTUNATE FIND.
14CHAPTER XIV. THE VOICE IN THE DARK.
30CHAPTER XXX. A FISH STORY.
15CHAPTER XV. THE MAN BEHIND THE MYSTERY.
31CHAPTER XXXI. FACING A SERIOUS SITUATION.
16CHAPTER XVI. ADAM DUKE’S METHODS.
32CHAPTER XXXII. THE “WHITE SHARK” TO THE RESCUE.
