* "Når natten kommer" (2002)
* "Det røde værelse" (2002)
* "Det blå rum" (2002)
* "Det grønne rum" (2002)
* "Det gule værelse" (2002)
* "The Purple Room" (2002)
* "The Orange Room" (2002)
* "Det brune værelse" (2002)
* "Det sorte rum" (2002)
* "Det hvide rum" (2002)
Noveller
* "The House of Stairs" (2003)
* "Statuernes by" (2004)
* "Hemmelighedernes Have" (2005)
* "Drømmenes palads" (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)
* "Clockwork Castle" (2012)
Romaner
* "Urmagerens kone" (2013)
* "The Secret of Mary Celeste" (2014)
* "The Tower of Shadows" (2015)
* "Pigen i det aflåste rum" (2016)
* "Hemmelighedernes ø" (2017)
* "Hemmelighedernes Hus" (2018)
* "The Last House on Needless Street" (2019)
* "Kvinden i den grønne kjole" (2020)
* "Pigen der kom tilbage" (2021)
* "Kvinden hvis øjne lukkede for altid" (2022)