Chapter List (12) Free
- 1: sequence
- 2: Part One: They Kill!
- 3: Part Two: The Cause of Death is a Mystery
- 4: Part Three: The Adventures of a Salesman
- 5: Part Four: The Stranger with No History
- 6: Part Five: The Incredible Naked Corpse
- 7: Part Six: Mysterious Little Footprints
- 8: Part Seven: They Are Robots
- 9: Part Eight: Became a Prisoner
- 10: Part Nine: I am their toy
- 11: Part Ten: Self-inflicted crimes, not to live!
- 12: Part Eleven: Escaped?
