In this gripping action-adventure tale geared for younger audiences, long-time chums Mark and Jack are living as the house guests of the brilliant inventor Professor Amos Henderson, who enlists their help to build a first-of-its-kind vehicle that can be used for underground exploration.
- 207 pages
- English
- PDF
- Available on iOS & Android
eBook - PDF
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0Table of contents
- Title
- Contents
- Chapter I - Washington Backs Out
- Chapter II - The Flying Mermaid
- Chapter III - Washington Decides
- Chapter IV - What Did Mark See?
- Chapter V - Attacked by a Whale
- Chapter VI - The Cyclone
- Chapter VII - A Queer Sail
- Chapter VIII - The Flying Mermaid Disabled
- Chapter IX - The Mutiny
- Chapter X - Fooling Their Enemies
- Chapter XI - Mysterious Happenings
- Chapter XII - The Big Hole
- Chapter XIII - Down into the Earth
- Chapter XIV - Many Miles Below
- Chapter XV - In the Strange Draught
- Chapter XVI - The New Land
- Chapter XVII - A Strange Country
- Chapter XVIII - Caught by a Strange Plant
- Chapter XIX - The Big Peach
- Chapter XX - Overhauling the Ship
- Chapter XXI - The Fish that Walked
- Chapter XXII - The Snake-Tree
- Chapter XXIII - The Deserted Village
- Chapter XXIV - The Giants
- Chapter XXV - Held by the Enemy
- Chapter XXVII - A Friend Indeed
- Chapter XXVII - A Great Journey
- Chapter XXVIII - The Temple of Treasure
- Chapter XXIX - Back Home—Conclusion