Cover of The Keeper of Lost Causes
Cover of Flaskepost Fra P
Cover of The Absent One
Cover of Victim 2117
Series

Department Q

4 books

Here are 4 books from the Department Q series by Jussi Adler-Olsen. Start with The Keeper of Lost Causes (2011), then read the rest in the order below.

Books in order

1
Cover of The Keeper of Lost Causes

The Keeper of Lost Causes

Jussi Adler-Olsen

When Chief Detective Carl Mørck returns to work after a devastating gunshot wound, he's reassigned to a basement office to handle cold cases—a punishment he views as the end of his career. His first assignment pulls him into the haunting five-year disappearance of a prominent politician, a case that has gone nowhere and been forgotten by everyone except those closest to the victim. As Mørck and his unconventional team dig deeper into the mystery, they uncover a web of secrets, lies, and dark motives that suggest the official investigation may have missed something crucial. With his reputation on the line and the case growing more complex by the day, Mørck must navigate institutional resistance and personal demons to uncover the truth. Jussi Adler-Olsen's gripping debut introduces a compelling detective and a mystery that will keep readers guessing until the final revelation.

MysteryDetective FictionThriller
2
Cover of Flaskepost Fra P

Flaskepost Fra P

Jussi Adler-Olsen

A chilling message in a bottle, tossed into the sea fifteen years ago, washes ashore and lands on the desk of Department Q. Detective Carl Mørck and his team are drawn into a disturbing cold case involving a ruthless killer, fervent religious extremism, and vulnerable children. As they delve deeper, they uncover a horrifying conspiracy that stretches back years, forcing them to confront the darkest corners of human depravity. This gripping thriller masterfully blends suspense, psychological depth, and a race against time to save innocent lives.

MysteryDetective FictionThriller
2
Cover of The Absent One

The Absent One

Jussi Adler-Olsen

Twenty years ago, a brother and sister vanished, and a man confessed to their murders. Now, Detective Carl Mørck of Department Q is reopening the cold case, driven by the unsettling possibility that the confessed killer is innocent. As Mørck and his team delve into the past, they uncover a complex web of secrets, powerful enemies, and a connection to a mysterious homeless woman. This gripping investigation forces Mørck to confront not only the truth behind the disappearances but also the dark forces determined to keep the past buried.

MysteryDetective FictionThriller
8
Cover of Victim 2117

Victim 2117

Jussi Adler-Olsen

When the body of a refugee washes ashore in Cyprus, the unidentified victim becomes the center of a chilling investigation—and is given the designation “Victim 2117.” As Department Q’s Carl Mørck and his team trace the victim’s final journey, they uncover connections to war, terrorism, and a deeply personal history of vengeance. Moving between Europe and the Middle East, the novel explores the human cost of conflict, radicalization, trauma, and the dangerous consequences of buried secrets. With its tense international scope and psychologically complex characters, it is a gripping entry in the Department Q series.

ThrillerDetective FictionPsychological Thriller