* The Black God's War (2009)
* Den blodrøde by (2009)
* The Iron Hand of Mars (2011)
* The City of a Thousand Suns (2013)
* The Sky Between the Worlds (2015)
* The Sound of Thunder (2017)
* Den Store Krig (2019)
* Den sidste krig (2021)
Faglitteratur:
* Dracula Revealed:The Secrets Behind the Vampire Myth (2011)
* Store slag i borgerkrigen (2012)
* De 100 største konspirationer nogensinde (2013)
* Jesu hemmelige liv:De gnostiske evangelier og mesterens sande historie (2015)
* The Book of the Dead:Unlocking the Secrets of the Afterlife (2017)
* Verdens hemmelige historie:Fra de gamle mysterier til den moderne konspiration (2019)
* The Alien Agenda:The Truth Behind the UFO Phenomenon (2021)
Noveller:
* "Det sidste opkald" (2009)
* "Manden der så Guds ansigt" (2011)
* "The Dead Speak" (2013)
* "The Time Machine" (2015)
* "The War of the Worlds" (2017)
* "The Call of Cthulhu" (2019)
* "Skyggen over Innsmouth" (2021)