Evil on the Bayou (1984)
The Lifeguard (1988)
Trick or Treat (1989) 
April Fools (1990) 
Scarecrow (1990) adult
Teacher's Pet (1990) 
Vampire (1991) 
Blood Roots (1992) adult
Fatal Secrets (1992) 
The Mall (1992) 
Help Wanted (1993) 
Silent Stalker (1993)
The Drifter (1994) 
The Locker (1994) 
Someone at the Door (1994) 
Overdue (1995) 
Starstruck (1996) 
Summer of Secrets (1996) 
The House Next Door (2002) 
It Begins - The Unseen (2003) 
Rest in Peace - The Unseen 02 (2004)
Blood Brothers - The Unseen 03 (2006)
Sin and Salvation - The Unseen 04 (2006)
Walk of the Spirits (April 17, 2008)

Buffy Series
1. Buffy, the Vampire Slayer (Film Novelization) (1992)Out walking alone one rainy night, Lucy becomes convinced that someone—or something—is following her. Spooked, she ducks into a cemetery to try and lose her stalker. Panicking in the darkness, she slips and stumbles into an open grave—only to discover she is not alone in there. . . . Lucy manages to escape, but she doesn’t get away unscathed. She begins having terrifying visions and dreams—and she still can’t shake the feeling of an unseen presence, always watching, waiting. . . . Who was the girl in the grave? And what has she done to Lucy?
2. The Harvest  (1997)
3. The Angel Chronicles 2 (1999)