Voyage to Procyon
Robert Silverberg
Heir Reluctant
Come Into My Brain!
Point of Focus
The Four
Castaways of Space
Exiled From Earth
Mournful Monster
Vampires from Outer Space
Heap Big Medicine
Eye of the Beholder
The Outbreeders
The Insidious Invaders
The Impossible Intelligence
Cosmic Kill
Darrien (1)
Starhaven
The Planet Killers
The 13th Immortal
Ace Double (223)
Stepsons of Terra
Ace Double (311)
Collision Course