Prince of Peril
Otis Adelbert Kline
Grandon (2)
Jan of the Jungle
Jan of the Jungle (1)
The Metal Monster
The Malignant Entity
Dr. Dorp (1)
Spawn of the Comet
Revenge of the Robot
A Vision of Venus
The Thing That Walked in the Rain
The Swordsman of Mars
Swordsman of Mars (1)
Call of the Savage
Maza of the Moon
The Man from the Moon
The Outlaws of Mars
Swordsman of Mars (2)
The Prince of Peril
The Port of Peril
Grandon (3)
Stolen Centuries
Jan of the Jungle (The Call of the Savage)