Foundation
Isaac Asimov
Foundation (3)
A Baffled Ambuscade
Ambrose Bierce
Black Magic Sanction
Kim Harrison
The Hollows (1)
Consider Pegasus
Si Clarke
Starship Teapot (3)
Test of the Twins
Margaret Weis & Tracy Hickman
Legends (3)
War of the Twins
Legends (2)
Time of the Twins
Legends (1)