- _Spider Moon_ (1992)
- _Blood Moon_ (1993)
- _Måneformørkelse_ (1994)
- _Total Eclipse_ (1995)
- _Apocalypse 2000_ (1996)
- _Ice Station_ (1998)
- _Operation Red Jericho_ (1999)
- _Lazarus-stammen_ (2000)
- _Osiris-sammensværgelsen_ (2001)
- _Omega-direktivet_ (2002)
- _The Armageddon Strain_ (2003)
- _The Eden Virus_ (2004)
- _The Satan Strain_ (2005)
- _The Armageddon Agenda_ (2006)
- _Lucifer-bedraget_ (2007)
- _The Apophis Prophecy_ (2008)
- _The Omega Conspiracy_ (2009)
- _The Maya Codex_ (2010)
- _Den aztekiske apokalypse_ (2011)
- _Inkaprofetien_ (2012)
- _Den forsvundne by_ (2013)
- _De syv dødssynder_ (2014)
- _De ti bud_ (2015)
- _De fire ryttere_ (2016)
- _Apocalypse Revelation_ (2017)
- _Dommedag_ (2018)
Faglitteratur:
- _The Real History of the End of the World_ (1996)
- _The Secret History of the Reptilians_ (2000)
- _UFO'er og udlændinge_ (2002)
- _Paranormale møder_ (2004)
- _Konspirationsteorier_ (2006)
- _Urban Legends_ (2008)
- _Fortean Phenomena_ (2010)
- _Det okkultes mystiske verden_ (2012)