The Mote in God's Eye
Larry Niven & Jerry Pournelle
The Merman's Children
Poul Anderson
The Penal Cluster
Randall Garrett
Time Cat: The Remarkable Journeys of Jason and Gareth
Lloyd Alexander
Summon the Keeper
Tanya Huff
Keeper's Chronicles (1)
The Cat Who Knew Shakespeare
Lilian Jackson Braun
The Cat Who (7)