Tactics of Mistake
Gordon R. Dickson
Childe Cycle (4)
Time Cat: The Remarkable Journeys of Jason and Gareth
Lloyd Alexander
Veil of the Deserters
Jeff Salyards
Bloodsounder's Arc (2)
Time Trap
Keith Laumer & Tom Wright
Time Trap (1)
Inherited War 1: Retribution
Eric McMeins
The Inherited War (1)