📖 About Department Q

Department Q is a series universe written by Jussi Adler-Olsen. The complete collection runs to 10 books across 1 series, published between 2011 and 2024.

The main series is Publication Order of Department Q Books with 10 books. It opens with The Keeper of Lost Causes / Mercy (2011) and currently runs to Locked In (2024).

Series included on this page:

🎯 Where to Start with Department Q

New readers should begin with the first book of the main series in publication order: The Keeper of Lost Causes / Mercy (2011), book 1 of Publication Order of Department Q Books. Reading in publication order lets the world and characters develop the way the author intended, and it avoids spoilers that later books may contain.

Each of the 1 series on this page is expandable — click a series heading to see every title it contains, in order, with a direct link to buy the book on Amazon.

📚 Department Q Books in Order

Publication Order of Department Q Books
10 books
1
The Keeper of Lost Causes / Mercy book cover1The Keeper of Lost Causes / Mercy2011Buy on Amazon
The Absent One / Disgrace book cover2The Absent One / Disgrace2012Buy on Amazon
A Conspiracy of Faith / Redemption / Flaskepost fra P book cover3A Conspiracy of Faith / Redemption / Flaskepost fra P2013Buy on Amazon
The Purity of Vengeance / Guilt / Journal 64 book cover4The Purity of Vengeance / Guilt / Journal 642013Buy on Amazon
The Marco Effect / Buried / Marco Effekten book cover5The Marco Effect / Buried / Marco Effekten2013Buy on Amazon
The Hanging Girl book cover6The Hanging Girl2014Buy on Amazon
The Scarred Woman book cover7The Scarred Woman2016Buy on Amazon
Victim 2117 book cover8Victim 21172020Buy on Amazon
The Shadow Murders book cover9The Shadow Murders2021Buy on Amazon
Locked In book cover10Locked In2024Buy on Amazon

❓ Frequently Asked Questions

How many Department Q books are there?
There are 10 books in the Department Q collection, organised into 1 series and published between 2011 and 2024.
What is the first Department Q book?
The first book is The Keeper of Lost Causes / Mercy, published in 2011.
What order should I read the Department Q books in?
Most readers use publication order, which is the order the books were originally released. A chronological order is also provided on this page for readers who prefer to follow the internal timeline of the story.
Who wrote the Department Q books?
The Department Q books were written by Jussi Adler-Olsen.
Is the Department Q series finished?
The main series, Publication Order of Department Q Books, has 10 books so far. The most recent title listed on this page gives the current end point of the series.
When did the Department Q series start?
The earliest title in this collection was published in 2011, and the most recent in 2024.