| Novels: The Wolfen (1978) | The Hunger (1981) | Black Magic (1982) | The Night Church (1983) | Warday (1984) | Wolf of Shadows (1985) | Nature's End (1986) | Cat Magic (1986) | Communion (1987) | Transformation (1988) | Majestic (1989) | Billy (1990) | The Wild (1991) | Unholy Fire (1992) | The Forbidden Zone (1993) | Breakthrough: The Next Step (1995) | The Secret School (1996) | Confirmation: The Hard Evidence of Aliens Among Us (1998) | The Coming Global Superstorm (2000) | The Key (2001) | The Last Vampire (2001) | The Path (2002) | Lilith's Dream: A Tale of the Vampire Life (2002) | The Day After Tomorrow (2004) | The Grays (2006) | 2012: The War for Souls (2007) |
