Azteca
1. Aztec (1980)
2. Aztec Autumn (1997)
3. Aztec Blood (2001) (with Robert Gleason and Junius Podrug)
4. Aztec Rage (2006) (with Robert Gleason and Junius Podrug)
5. Aztec Fire (2008) (with Robert Gleason and Junius Podrug)

Spangle
Spangle (1987)
1. The Road Show (1999)
2. The Center Ring (1999)
3. The Grand Promenade (1999)

The Journeyer (1983)
The Lively Lives of Crispin Mobey (1988) (writing as Gabriel Quyth)
Raptor (1992)