Silent Legacy
Ciarán Llachlan Leavitt
Callahan's Key
Spider Robinson
Callahan's (10)
The Ethical Engineer
Harry Harrison
Deathworld (2)
The Burning Ground
Jo Clayton
Shadowsong (2)
The Shape Changer
Keith Laumer
Lafayette O'Leary (3)
World Shuffler
Lafayette O'Leary (2)
The World Shuffler
The Time Bender
Lafayette O'Leary (1)
The Universe Twister
Keith Laumer & Eric Flint