Order of Department Q Books

Department Q is a series of crime thriller novels by Danish novelist Jussi Adler-Olsen. The series follows Carl Morck, one of the best homicide detectives in Copenhagen who has been promoted to the cold case department.

The Department Q series originally began in Danish with Kvinden i buret in 2007. In 2011, it would be translated into English and published in the UK as Mercy and in the USA as The Keeper of Lost Causes. Below is a list of Jussi Adler-Olsen’s Department Q books in order of when they were originally published in their English language editions:

Publication Order of Department Q Books

The Keeper of Lost Causes / Mercy	(2011)	Amazon.com \| Amazon.de
The Absent One / Disgrace	(2012)	Amazon.com \| Amazon.de
A Conspiracy of Faith / Redemption / Flaskepost fra P	(2013)	Amazon.com \| Amazon.de
The Purity of Vengeance / Guilt / Journal 64	(2013)	Amazon.com \| Amazon.de
The Marco Effect / Buried / Marco Effekten	(2013)	Amazon.com \| Amazon.de
The Hanging Girl	(2014)	Amazon.com \| Amazon.de
The Scarred Woman	(2016)	Amazon.com \| Amazon.de
Victim 2117	(2020)	Amazon.com \| Amazon.de
The Shadow Murders	(2021)	Amazon.com \| Amazon.de
Locked In	(2024)	Amazon.com \| Amazon.de

Notes: The Keeper of Lost Causes was published as Mercy in the United Kingdom. The Absent One was published under the title of Disgrace in the UK. A Conspiracy of Faith is titled Redemption in the UK. The Purity of Vengeance is titled Guilt in the UK. The Marco Effect is also known as Buried.