The Sleepwalker: The brand new 2026 Detective Joona Linna crime thriller
Lars Kepler
Jul 2025 · Joona Linna Book 3 · Zaffre · Narrated by Peter Noble
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17 hr 7 min
Unabridged
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An alarm sounds in the middle of the night for a burglary in progress at a winter-closed campsite in Bredäng, outside Stockholm.
The police spot a light in one of the farthest caravans and when the officers open the door they are greeted by a horrific sight. Floors, walls and furniture are completely covered in blood. A man has been killed with an axe and brutally dismembered.
On the floor lies a young man sleeping with a severed arm as a pillow. He is arrested and taken to Kronoberg prison, identified as seventeen-year-old Hugo Sand, the son of a famous writer.
Hugo suffers from a rare sleepwalking condition that is activated by nightmares. He is either the perpetrator or a witness, but claims to remember nothing from the night.
Detective Joona Linna contacts his old friend Erik Maria Bark to use hypnosis to try to find out what happened inside the caravan. So begins the sleepless hunt for a serial killer who is only just getting started . . .
The police spot a light in one of the farthest caravans and when the officers open the door they are greeted by a horrific sight. Floors, walls and furniture are completely covered in blood. A man has been killed with an axe and brutally dismembered.
On the floor lies a young man sleeping with a severed arm as a pillow. He is arrested and taken to Kronoberg prison, identified as seventeen-year-old Hugo Sand, the son of a famous writer.
Hugo suffers from a rare sleepwalking condition that is activated by nightmares. He is either the perpetrator or a witness, but claims to remember nothing from the night.
Detective Joona Linna contacts his old friend Erik Maria Bark to use hypnosis to try to find out what happened inside the caravan. So begins the sleepless hunt for a serial killer who is only just getting started . . .
An alarm sounds in the middle of the night for a burglary in progress at a winter-closed campsite in Bredäng, outside Stockholm.
The police spot a light in one of the farthest caravans and when the officers open the door they are greeted by a horrific sight. Floors, walls and furniture are comp...
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Ratings and reviews
1 review
Yulia T.
- Flag inappropriate
October 17, 2026
It's hard to immerse oneself into a book if the narrator stresses every word... The writing feels weaker and lazier compared to the early instalments of the series.
About the author
Lars Kepler (Author)
Lars Kepler is the pseudonym of critically acclaimed husband and wife team Alexandra Coelho Ahndoril (b. 1966) and Alexander Ahndoril (b. 1967), authors of the No. 1 internationally bestselling Joona Linna series.
With seven instalments to date, the series has sold 15 million copies in 40 languages. The Ahndorils were both established writers before they adopted the pen name Lars Kepler, and have each published several acclaimed novels.
Lars Kepler is the pseudonym of critically acclaimed husband and wife team Alexandra Coelho Ahndoril (b. 1966) and Alexander Ahndoril (b. 1967), authors of the No. 1 internationally bestselling Joona Linna series.
With seven instalments to date, the series has sold 15 million copies in 40 languages. The Ahndorils were both established writers before they adopted the pen name Lars Kepler, and have each published several acclaimed novels.
Lars Kepler (Author)
Lars Kepler is the pseudonym of critically acclaimed husband and wife team Alexandra Coelho Ahndoril (b. 1966) and Alexander Ahndoril (b. 1967), authors of the No. 1 internationally bestselling Joona Linna series.
With seven instalments to date, the series has sold 15 milli...
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