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