- King's Ransom (1978)
- The Last Cavalier (1981)
- Night Rituals (1983)
- Blood Vengeance (1986)
- Last of the Breed (1988)
- Dead Aim (1990)
- The Lazarus Condition (1993)
- Death Warrant (1995)
- Kill Zone (1997)
- The Assassin's Code (1999)
Non-fiction:
- The Handbook of Practical Disaster Preparedness (1999)
- The Complete Book of Self-Defense (2000)
- The Encyclopedia of Self-Defense Techniques (2002)
- The Ultimate Guide to Home Security (2004)
- The Disaster Survival Handbook (2006)