Garden of the Incubus (1982)
Unto the Altar (1985)
Kiss Not the Child (1986)
Evil Dreams (1986)
The Immortal (1986)
Hands of Lucifer (1987)
As Evil Does (1987)
The Pack (1987) (writing as William Essex)
Venom (1988)
Slime (1988) (writing as William Essex)
Vessel (1988)
From Below (1989) (writing as William Essex)
Book of the Dead (1989)
Comes the Wraith (1990)
The Curse (1993)
Monster (1995)