Time for the Stars
Robert A. Heinlein
In Hero Years... I'm Dead
Michael A. Stackpole
Strata
Terry Pratchett
The Long Cosmos
The Long Earth (5)
That Hideous Strength
C.S. Lewis
The Space Trilogy (3)
Perelandra
The Space Trilogy (2)
Out of the Silent Planet
The Space Trilogy (1)
