- *Mord i familien* (1983)
- *The Last Cadaver* (1988)
- *Det perfekte alibi* (1991)
- *De dødes begravelse* (1994)
- *Lazarushjertet* (1997)
- *The Stone Carvers* (2000)
- *Snøleoparden* (2003)
- *The Last Day of the Mistral* (2006)
- *Jenta som ville være dronning* (2009)
- *Alt blodet vi utøste* (2012)
- *Jenta i glassboksen* (2015)
- *The Black Donnellys* (2017)
- *Jenta som levde to ganger* (2020)
Noveller:
- "Kroppen i brønnen" (1983)
- "The Devil's Due" (1984)
- "Sverdets sjel" (1985)
- "The Ghost of John Wilkes Booth" (1986)
- "Den døde mannens hånd" (1987)
- "The Final Curtain" (1988)
- "Mannen som ville være konge" (1989)
- "The Woman in White" (1990)
- "Huset på bakken" (1991)
- "The Secret of the Loch" (1992)
- "The Curse of the Pharaoh" (1993)
- "Mumiens forbannelse" (1994)
- "The Legend of the Vampire" (1995)
- "Varulvens forbannelse" (1996)
- "The Witch's Brew" (1997)
- "The Ghost Story" (1998)
- "The Christmas Carol" (1999)
- "Påskeeggjakten" (2000)
- "The Fourth of July Picnic" (2001)
- "The Halloween Party" (2002)
- "The Thanksgiving Dinner" (2003)
- "The Christmas Party" (2004)
- "Nyttårsfesten" (2005)
- "The Valentine's Day Massacre" (2006)
- "The St. Patrick's Day Parade" (2007)
- "Påskeeggjakten" (2008)
- "The Fourth of July Picnic" (2009)
- "The Halloween Party" (2010)
- "The Thanksgiving Dinner" (2011)
- "The Christmas Party" (2012)
- "Nyttårsfesten" (2013)
- "The Valentine's Day Massacre" (2014)
- "The St. Patrick's Day Parade" (2015)
- "Påskeeggjakten" (2016)
- "The Fourth of July Picnic" (2017)
- "The Halloween Party" (2018)
- "The Thanksgiving Dinner" (2019)
- "The Christmas Party" (2020)
Artikler:
- "The Art of the Mystery Novel" (1983)
- "The Future of the Mystery Novel" (1984)
- "De beste mysterieromanene gjennom tidene" (1985)
- "The Anatomy of a Mystery Novel" (1986)
- "The Psychology of the Mystery Novel" (1987)
- "The Sociology of the Mystery Novel" (1988)
- "The History of the Mystery Roman" (1989)
- "The Golden Age of the Mystery Roman" (1990)
- "The New Age of the Mystery Novel" (1991)
- "The Future of the Mystery Novel" (1992)