What is the mystery centered in Jupiter's famous "Red Spot"? Two fighting Earthmen, caught by the "Pipe-men" like their vanished comrades, soon find out! - Original text
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Chapters
- Chapter 1
The Red Spot
15:37 - Chapter 2
The Pipe-like Men
19:38 - Chapter 3
The Coming of Greta
15:40 - Chapter 4
In the Tower
11:06 - Chapter 5
The Torture Chamber
13:42 - Chapter 6
The Inquisition
15:40 - Chapter 7
In the Power-House
16:54 - Chapter 8
Tremendous Odds
11:40 - Chapter 9
Into the Enclosure
13:40 - Chapter 10
The ''Tank Scheme''
22:35