* The Eleventh Plague
* The Shadow Lord
* The Rule of the Sixes
* The Last Templar
* Revelation
* The Key
* The Seven Keys to Doomsday
* The Lost City
* The Dragon's Eye
* The Spider's Web
* The Serpent's Claw
Nonfiction
* The Bermuda Triangle
* The Loch Ness Monster
* The Yeti
* The Roswell Incident
* The Secret History of the World