* The Sacred Book of the Vampires (1989)
* The God in the M¿quina (1990)
* Dead Man's Switch (1992)
* Resurrection Days (1994)
* The Devil's Punchbowl (1995)
* Dødens hus (1997)
* Children of the Damned (1999)
* Det tredje testamente (2001)
* The Prophecy (2004)
* The Apocalypse Watch (2006)
* The Harbingers (2008)
* The Reckoning (2010)
* De sidste dage (2012)
* The Armageddon Code (2014)
* The Omega Conspiracy (2016)
* The Revelation Rebellion (2017)
Noveller
* The Vampires of Venice (1990)
* The Haunting of House Harker (1991)
* Draculas søn (1993)
* Ulvens time (1994)
* The Mummy's Curse (1995)
* The Frankenstein Legacy (1996)
* Den usynlige mands hævn (1997)
* The Hunchback of Notre Dame (1998)
* The Phantom of the Opera (1999)
* The Picture of Dorian Gray (2000)
noveller
* "The Calling" (1988)
* "The Communion" (1988)
* "Indvielsen" (1988)
* "Nadveren" (1988)
* "Det sidste ritual" (1988)
* "The Dark Descent" (1989)
* "The Night of the Living Dead" (1989)
* "The Return of the Living Dead" (1989)
* "De dødes dag" (1989)
* "The Evil Dead" (1989)
* "Mumiens forbandelse" (1990)
* "The Return of the Mummy" (1990)
* "Mumiens hævn" (1990)
* "Mumiens grav" (1990)
* "The Frankenstein Monster" (1990)
* "Bruden af Frankenstein" (1990)
* "The Son of Frankenstein" (1990)
* "The Ghost of Frankenstein" (1990)
* "Den usynlige mand" (1990)
* "Den usynlige mand vender tilbage" (1990)
* "Den usynlige mands hævn" (1990)
* "Den usynlige mands arv" (1990)
* "The Phantom of the Opera" (1991)
* "The Return of the Phantom" (1991)
* "The Phantom's Revenge" (1991)
* "The Phantom's Curse" (1991)
* "Billedet af Dorian Gray" (1991)
* "The Return of Dorian Gray" (1991)
* "The Revenge of Dorian Gray" (1991)
* "The Curse of Dorian Gray" (1991)
* "The Hunchback of Notre Dame" (1992)
* "The Hunchback Return" (1992)
* "Pukkelryggens hævn" (1992)
* "The Curse of the Hunchback" (1992)
* "The Wolf Man" (1992)
* "The Return of the Wolf Man" (1992)
* "Ulvemandens hævn" (1992)
* "The Curse of the Wolf Man" (1992)
* "Vampyren" (1993)
* "The Return of the Vampire" (1993)
* "Vampyrens hævn" (1993)
* "The Curse of the Vampire" (1993)
* "Varulven" (1993)
* "Varulvens tilbagevenden" (1993)
* "Varulvens hævn" (1993)
* "Varulvens forbandelse" (1993)
* "The Zombie" (1994)
Faglitteratur
* The World of the Vampires (1988)
* Varulvenes verden (1991)
* Mumiernes verden (1992)
* The World of the Frankensteins (1993)
* The World of the Invisible Men (1994)
* Fantomernes verden (1995)
* Hunchbacks verden (1996)
* The World of the Wolf Men (1997)
* Zombiernes verden (1998)
* Horrorforfatternes verden (1999)
* Horror-filmenes verden (2000)
* The World of the Horror Television (2001)
* The World of the Horror Comics (2002)
* Horror-romanernes verden (2003)
* Horrornovellernes verden (2004)
* Horror-antologiernes verden (2005)
* The World of the Horror Zines (2006)
* The World of the Horror Websites (2007)
* The World of the Horror Bookshops (2008)
* Horrormuseernes verden (2009)
* The World of the Horror Festivals (2010)
* The World of the Horror Conventions (2011)
* The World of the Horror Awards (2012)
* The World of the Horror History (2013)
* The World of the Horror Future (2014)