This Star Shall Abide
Sylvia Engdahl
Briefing for a Descent Into Hell
Doris May Lessing
Fear that man
Dean Koontz
Slaughterhouse-five: or, The children's crusade, a duty-dance ...
Kurt Vonnegut
Star quest
Do Androids Dream of Electric Sheep?
Philip K. Dick
Conan
Robert E. Howard
Doctor Who and the Crusaders
David Whitaker; Na
The Black Cloud
Fred Hoyle; Fred Hoyle (Sir.)
Starship Troopers
Robert A Heinlein
Magister Ludi: The Glass Bead Game
Hermann Hesse