Table of Contents
CHAPTER I. A LAKE HURON "HUMMER."
CHAPTER III. TOM ENCOUNTERS SOME OLD FOES.
CHAPTER IV. A CRAFT OF MYSTERY.
CHAPTER V. TOM IS IN THE THICK OF IT.
CHAPTER VI. ALONG A TRAIL OF TROUBLES.
CHAPTER VII. TWO BRAVE LADS AT BAY.
CHAPTER VIII. A TOUR OF EXPLORATION.
CHAPTER IX. "FIFTY DOLLARS TO THE MAN THAT GETS THEM!"
CHAPTER X. A TRAP OF NATURE'S MAKING.
CHAPTER XII. MR. IRONSIDES' SUBMARINE—HURON.
CHAPTER XIII. THE STRANGEST VESSEL ON THE LAKES.
CHAPTER XIV. OFF ON A LONG CHASE.
CHAPTER XV. "WE'VE STRUCK A SUBMERGED WRECK!"
CHAPTER XVI. IN THE GRASP OF CALAMITY.
CHAPTER XVII. CAPTAIN RANGLER RE-APPEARS.
CHAPTER XVIII. A MAN OF QUEER MANNERS.
CHAPTER XIX. WITHIN THE TOWER.
CHAPTER XX. THE ENEMY'S VICTORY.
CHAPTER XXI. "THERE IS A WAY—I MEAN TO TRY IT."
CHAPTER XXII. A BIT OF MADCAP DARING.