The Prince and the Pirate
Keith Laumer
Retief (1)
The City That Grew in the Sea
The Governor of Glave
The Fabulous Riverboat
Philip José Farmer
Riverworld (2)
Three Worlds to Conquer
Poul Anderson
Sam Hall Universe (1)
Operation High Time
Jacqueline Lichtenberg
Sime/Gen (13)
Black Easter
James Blish
The Devil's Day (1)
Silkies in Space
A. E. Van Vogt
The Silkie (1)
The Silkie