* "Når natten kommer" (2002)
* "Det røde rommet" (2002)
* "Det blå rommet" (2002)
* "Det grønne rommet" (2002)
* "Det gule rommet" (2002)
* "The Purple Room" (2002)
* "The Orange Room" (2002)
* "The Brown Room" (2002)
* "Det svarte rommet" (2002)
* "Det hvite rommet" (2002)
Noveller
* "The House of Stairs" (2003)
* "Statuerbyen" (2004)
* "The Garden of Secrets" (2005)
* "Drømmenes palass" (2006)
* "The Tower of Shadows" (2007)
* "The Labyrinth of Lies" (2008)
* "The Museum of Wonders" (2009)
* "The Library of Secrets" (2010)
* "The Cabinet of Curiosities" (2011)
* "The Clockwork Castle" (2012)
Romaner
* "Urmakerens kone" (2013)
* "The Secret of Mary Celeste" (2014)
* "The Tower of Shadows" (2015)
* "Jenta i det låste rommet" (2016)
* "The Island of Secrets" (2017)
* "Hemmelighetenes hus" (2018)
* "The Last House on Needless Street" (2019)
* "Kvinnen i den grønne kjolen" (2020)
* "Jenta som kom tilbake" (2021)
* "Kvinnen hvis øyne lukket for alltid" (2022)