An entire subway train full of passengers seems to disappear into thin air in the tunnels of the New York subway system! A murdered man's body seems to dissolve into the floor before a witness's very eyes! What do the mysterious subterranean ape men have to do with it all? Find out for yourself in this thrilling tale of wild science fiction! - Summary by Ben Tucker
LibriVox recordings are public domain in the United States; copyright status may differ elsewhere.
Chapters
- Chapter 1
Chapter I
12:05 - Chapter 2
Chapter II
13:28 - Chapter 3
Chapter III
11:55 - Chapter 4
Chapter IV
13:15 - Chapter 5
Chapter V
15:15 - Chapter 6
Chapter VI
17:34 - Chapter 7
Chapter VII
15:08 - Chapter 8
Chapter VIII
15:04 - Chapter 9
Chapter IX
15:34 - Chapter 10
Chapter X
15:12 - Chapter 11
Chapter XI
03:52