Darkness Box
Ursula K. Le Guin
Cully
Jack Egan
The Cuckoo Clock
Wesley Barefoot
The Cube Root of Conquest
Rog Phillips
Cry from a Far Planet
Tom Godwin
The Cosmic Deflector
Stanton A. Coblentz
The Corridors of Time
Poul Anderson
Conquest of Earth
Manly Banister
The Commuter
Philip K. Dick
Collision Course
Robert Silverberg
The Cold Green Eye
Jack Williamson
Cold Ghost
Chester S. Geier
Cocoon
Keith Laumer
The Closed Door
Kendell Foster Crossen
Clean Slate
James H. Schmitz
Citadel of Darkness