* The Complete Casebook of Hiram and Solomon: Two-Gun Trail Drive (2020)
* No Way Home (2000)
* The Grand Alliance (1998)
* Heaven is a Place on Earth (Short Story, 1996)
* King Null (1994)
* The Little Blue Box (Short Story, 1988)
* Dog in the Snow (1988)
* The Basic Black with Pearls (1987)
* King Null II: The Return of King Null (1986)
* The King Null Chronicles (1985)
Non-Fiction
* The Complete Casebook of Hiram and Solomon: The Big Horn Bonanza (2019)
* The Complete Casebook of Hiram and Solomon: The Lost Dutchman (2019)
* The Complete Casebook of Hiram and Solomon: The Mystery of the Crystal Skulls (2018)
* The Complete Casebook of Hiram and Solomon: UFO's (2018)
* The Complete Casebook of Hiram and Solomon: Pirates (2018)
* The Complete Casebook of Hiram and Solomon: The Loch Ness Monster (2018)
* The Complete Casebook of Hiram and Solomon: The Chupacabra (2017)
* The Complete Casebook of Hiram and Solomon: Mothman (2017)
* The Complete Casebook of Hiram and Solomon: Bigfoot (2017)
* The Complete Casebook of Hiram and Solomon: The Great Pyramids (2017)
* Murder on the Orient Express: The Agatha Christie Mystery (2016)
* The Complete Casebook of Hiram and Solomon: The Curse of King Tut (2015)
* The Complete Casebook of Hiram and Solomon: The Bermuda Triangle (2015)
* The Complete Casebook of Hiram and Solomon: Atlantis (2014)
* The Complete Casebook of Hiram and Solomon: The Trojan Horse (2013)
* The Complete Casebook of Hiram and Solomon: The Ark of the Covenant (2013)
* The Complete Casebook of Hiram and Solomon: The Shroud of Turin (2012)
* The Complete Casebook of Hiram and Solomon: Aliens and Area 51 (2011)
* The Complete Casebook of Hiram and Solomon: Nostradamus (2010)
* The Complete Casebook of Hiram and Solomon: The Spear of Destiny (2009)
* The Complete Casebook of Hiram and Solomon: King Arthur and the Knights of the Round Table (2008)
* The Complete Casebook of Hiram and Solomon: Robin Hood (2007)
* The Complete Casebook of Hiram and Solomon: The Holy Grail (2006)
* The Complete Casebook of Hiram and Solomon: The Ten Commandments (2005)
* The Complete Casebook of Hiram and Solomon: The Life and Death of Jesus Christ (2004)
* The Complete Casebook of Hiram and Solomon: The Book of Revelation (2003)
* The Complete Casebook of Hiram and Solomon: The Dead Sea Scrolls (2002)
* The Complete Casebook of Hiram and Solomon: The Great Library of Alexandria (2001)