CHAPTER I A MYSTERIOUS MESSAGE
CHAPTER II UNCLE TOD IS MISSING
CHAPTER III THE TELEGRAM
CHAPTER IV OFF FOR THE WEST
CHAPTER V RUDDY GIVES WARNING
CHAPTER VI A WILD RIDE
CHAPTER VII THE LONELY CABIN
CHAPTER VIII “GONE!”
CHAPTER IX THE PURSUIT
CHAPTER X A STRANGE DISCOVERY
CHAPTER XI UNCLE TOD’S CAMP
CHAPTER XII LOST RIVER
CHAPTER XIII THE DRY MINE
CHAPTER XIV INTO THE CAVERN
CHAPTER XV UNCLE TOD GIVES UP
CHAPTER XVI RICK DRAWS SOMETHING
CHAPTER XVII ON THEIR OWN
CHAPTER XVIII INTO THE DARK
CHAPTER XIX MYSTERIOUS NOISES
CHAPTER XX A STRANGE CAMP
CHAPTER XXI SCOUTING AROUND
CHAPTER XXII SOLVING THE SECRET
CHAPTER XXIII CARRYING THE GOOD NEWS
CHAPTER XXIV TURNING LOST RIVER BACK
CHAPTER XXV THE RUDDY MINE
