CHAPTER I
The Occurrence of the Impossible
CHAPTER II
Steel Becomes Interested
CHAPTER III
Seaton Solves the Problem of Power
CHAPTER IV
Steel Liberates Energy—Unexpectedly
MYSTERIOUS EXPLOSION!
CHAPTER V
Direct Action
CHAPTER VI
The Object-Compass at Work
CHAPTER VII
The Trial Voyage
CHAPTER VIII
Indirect Action
CHAPTER IX
Lost In Space
CHAPTER X
The Rescue
CHAPTER XI
Through Space Into the Carboniferous
CHAPTER XII
The Mastery of Mind Over Matter
CHAPTER XIII
Nalboon of Mardonale
CHAPTER XIV.
Nalboon Unmasked
CHAPTER XV.
The Escape from Mardonale
CHAPTER XVI.
An Osnomian Marriage
CHAPTER XVII.
Bird, Beast, or Fish?
CHAPTER XVIII
The Invasion
CHAPTER XIX
The Return to Earth