CHAPTER I. In the Burning Breaker
CHAPTER II. A Fearful Ride
CHAPTER III. The Mine Boss Takes Derrick into his Confidence
CHAPTER IV. Introducing Harry, the Bumping-mule
CHAPTER V. Attacked by Enemies, and Lost in the Mine
CHAPTER VI. The Secret Meeting.—A Plunge down an Air shaft
CHAPTER VII. A Cripple's Brave Deed
CHAPTER VIII. Derrick Sterling's Splendid Revenge
CHAPTER IX. Socrates, the Wise Mine Rat
CHAPTER X. In the Old Workings.—Misled by an Altered Line
CHAPTER XI. A Fatal Explosion of Fire-damp
CHAPTER XII. The Mine Boss in a Dilemma
CHAPTER XIII. Ladies in the Mine.—Harry Mule's Sad Mishap
CHAPTER XIV. A Life is Saved and Derrick is Promoted
CHAPTER XV. A "Squeeze" and a Fall of Rock
CHAPTER XVI. Bursting of an Underground Reservoir
CHAPTER XVII. Imprisoned in the Flooded Mine
CHAPTER XVIII. To the Rescue!—A Message from the Prisoners
CHAPTER XIX. Restored to Daylight
CHAPTER XX. Good-by to the Colliery