* The Complete Casebook of Hiram and Solomon:Two-Gun Trail Drive (2020)
* Kein Weg nach Hause (2000)
* Die Große Allianz (1998)
* Der Himmel ist ein Ort auf Erden (Kurzgeschichte, 1996)
* König Null (1994)
* The Little Blue Box (Kurzgeschichte, 1988)
* Hund im Schnee (1988)
* Das Basic Black mit Perlen (1987)
* King Null II:Die Rückkehr von King Null (1986)
* Die King Null Chronicles (1985)
Sachbücher
* 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)
* Mord im Orient-Express:Das Agatha-Christie-Mysterium (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)
* Das vollständige Fallbuch von Hiram und Salomo:Das Grabtuch von Turin (2012)
* The Complete Casebook of Hiram and Solomon:Aliens and Area 51 (2011)
* Das vollständige Fallbuch von Hiram und Salomo: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)