The Sorcerer's Dragon
Julius St. Clair
The Seven Sorcerers Saga (2)
The Unicorn Trade
Poul Anderson
Titan
John Varley
The Gaea Trilogy (1)
Gate of Darkness, Circle of Light
Tanya Huff
Crusade
David Weber & Steve White
Starfire (2)
The Shiva Option
Starfire (4)
In Death Ground
Starfire (3)