- 1981: The Scorpion God
- 1982: The Fire in the Stone
- 1983: Black Glass
- 1983: The Diamond in the Sky
- 1984: Wolf on the Fold
- 1985: Phoenix: The Return of the Scorpion God
- 1988: The Seventh Crystal
- 1989: Dark Heart of Time
- 1990: Death from Across the Sea
- 1992: Lord of Vengeance
- 2011: The Blood Dragon (first book of a planned trilogy; sequel to Black Glass and The Diamond in the Sky)
- 2020: Blood-Red Shadows (a sequel to The Scorpion God)
Collections
- 1991: Unnatural Encounters: Stories of Horror
- 1997: Demons Keep: Ten Tales of Terror
Short fiction
- "Children of the Night" (1981)
- "The Final Sacrifice" (1982)
- "The Uninvited Guest" (1982)
- "A Place of Safety" (1983)
- "The Last Dance" (1983)
- "The Haunted Library" (1984)
- "The House on the Hill" (1984)
- "The Secret" (1984)
- "The Man Who Loved Books" (1985)
- "The Bookworm" (1985)
- "The Shadow" (1986)
- "The Visitor" (1986)
- "The Thing in the Attic" (1987)
- "The Ghost of Thomas Kempe" (1987)
- "The Phantom of the Library" (1988)
- "The Curse of Ravenscroft Abbey" (1989)
- "The Legend of Ashbridge Manor" (1990)
- "The Secret of Blackwood Castle" (1991)
- "The Mystery of the Haunted Lighthouse" (1992)
- "The Horror at Hexmorton House" (1993)
- "The Beast of Bodmin Moor" (1994)
- "The Phantom of Pendragon Hall" (1995)
- "The Curse of the Pharaoh's Tomb" (1996)
- "The Legend of the Werewolf of Dartmoor" (1997)
- "The Secret of the Loch Ness Monster" (1998)
- "The Mystery of the Bermuda Triangle" (1999)
- "The Horror at Area 51" (2000)
- "The Curse of the Hope Diamond" (2001)
- "The Legend of Bigfoot" (2002)
- "The Secret of the Abominable Snowman" (2003)
- "The Mystery of the Loch Ness Monster" (2004)
- "The Horror at Area 51" (2005)
- "The Curse of the Hope Diamond" (2006)
- "The Legend of Bigfoot" (2007)
- "The Secret of the Abominable Snowman" (2008)
- "The Mystery of the Loch Ness Monster" (2009)
- "The Horror at Area 51" (2010)