* *Fatal Cache* (2008)
* *Night of the Living Rez* (2008)
* *Djævelens tunge* (2009)
* *The Vampire Hunter's Apprentice* (2011)
* *The Zombie Survival Guide:Complete Protection from the Living Dead* (2011)
* *The Apollyon Strain* (2013)
* *The Book of Shadows* (2014)
* *The Last Days of Jack Sparks* (2015)
* *Pigen med den røde hætte* (2017)
* *The Harbinger* (2019)
* *Skyggejægerens lærling* (2020)
* *Necromancer's Apprentice* (2021)
Noveller
* *The Ghoul Next Door* (2012)
* *The Return of the Living Rez* (2013)
* *Den røde døds forbandelse* (2014)
* *Heksens lærling* (2016)
* *The Warlock's Apprentice* (2018)
* *Dragens lærling* (2022)
noveller
* "The Last Zombie Story" (2010)
* "Manden der døde to gange" (2010)
* "Pigen der så spøgelser" (2011)
* "Julegavens spøgelse" (2011)
* "Drengen der græd varulv" (2012)
* "The Girl with the Dragon Tattoo" (2012)
* "The Beast of Bray Road" (2013)
* "The Mothman Prophecies" (2013)
* "The Jersey Devil" (2014)
* "The Chupacabra" (2015)
* "The Loch Ness Monster" (2016)
* "The Yeti" (2017)
* "The Bigfoot" (2018)
* "The Thunderbird" (2019)
* "The Quetzalcoatl" (2020)
* "The Manticore" (2021)
Faglitteratur
* *The Zombie Survival Guide:Complete Protection from the Living Dead* (2011)
* *The Vampire Hunter's Handbook:A Guide to Hunting and Killing Vampires* (2012)
* *The Witch's Apprentice:A Guide to Becoming a Witch* (2014)
* *The Necromancer's Apprentice:A Guide to Raising the Dead* (2015)
* *The Dragon's Apprentice:A Guide to Training and Riding Dragons* (2020)