The Seahorse

2013

Horror of the Heights

2006

Finding Joe

2003

Shark Attack!

2003

Welcome Stranger

2002

Stalker

1999

Dark Tower

1998

Dancing with the Dead

1998

Poltergeist

1996

Scary Tales to Tell in the Dark

1992

Literary Agents

The Novelist As Spy

1987

Tenko

1981

Devil's Dominion

The Complete Story of Hell and Satanism in the Modern World

1978

Bakunin, the father of anarchism

1974

The Natural History of the Vampire

1972