Novels
Sister Satan (1984)
Deathbringer (1985)
The Summoning (1988)
Demon Within (1988)
Margo (1989)
Hell Board (1990)
The Gatekeeper (1991)
Dark Secrets (1998)
Colors of Rage (2001)
Dark Secrets, White Lies (2001)
Grave Results (2003)
Unholy Alliance (2004)
The Fifth Deadly Sin (2005)
Deathbringer (1985)
The Summoning (1988)
Demon Within (1988)
Margo (1989)
Hell Board (1990)
The Gatekeeper (1991)
Dark Secrets (1998)
Colors of Rage (2001)
Dark Secrets, White Lies (2001)
Grave Results (2003)
Unholy Alliance (2004)
The Fifth Deadly Sin (2005)