* _Stormbølge_ (2009)
* _Den grønne sesongen_ (2009)
* _In Sunlight and Shadow_ (2010)
* _American Gothic_ (2011)
* _Absolution Blues_ (2012)
* _Fire and Brimstone_ (2013)
* _Steinmannen_ (2014)
* _Jenta som kunne se torden_ (2015)
* _Den hvite masken_ (2016)
* _Heksens tre_ (2017)
* _Djevelens ryggrad_ (2018)
* _The Black Tide_ (2019)
* _The Pale Horseman_ (2020)
* _The Dark Abyss_ (2021)
* _The Infernal City_ (2022)
Noveller
* "The Hollow Man" (2010)
* "Huset på bakken" (2011)
* "The Last Ride" (2012)
* "The Haunted Cemetery" (2013)
* "The Dead Circus" (2014)
* "Vampyrene i Venezia" (2015)
* "The Werewolves of London" (2016)
* "The Ghosts of Paris" (2017)
* "Mumiene i Egypt" (2018)
* "The Zombies of Africa" (2019)
* "The Aliens of Roswell" (2020)
* "The Bigfoot of the Pacific Northwest" (2021)
Annet
* _The Gothic Writer's Handbook_ (2011)
* _The Creative Writer's Toolbox_ (2012)
* _The Writer's Guide to the Craft of Writing_ (2013)
* _The Art of Horror Writing_ (2014)
* _The Science of Fiction Writing_ (2015)
* _The Craft of Mystery Writing_ (2016)
* _The Elements of Fantasy Writing_ (2017)
* _The Complete Guide to Writing Historical Fiction_ (2018)
* _Den ultimate guiden til å skrive romanske romaner_ (2019)