The Rivers of War
Eric Flint
Soldier Mine
Amber Kell
Thresl Chronicles (1)
The Demon Door
Kim Alexander
The Powers of the Air (1)
Time Patrolman
Poul Anderson
Time Patrol (2)
The Fifth Ring
Mitchell Graham
Fifth Ring (1)
The Emerald Cavern
Fifth Ring (2)
The Ancient Legacy
Fifth Ring (3)