Twenty-four years ago Katharina Haugen went missing. All she left behind was her husband, Martin, and a mysterious string of numbers scribbled on a piece of paper. Every year on October 9th Chief Inspector William Wisting takes out the files to the case he was never able to solve. Stares at the code he was never able to crack. And visits the husband he was never able to help. But now Martin Haugen is missing too. 

The newspaper refers to her only as Victim 2117 - the 2117th refugee to die in the Mediterranean Sea. But to three people, the victim is so much more, and her death sets off a chain of events that throws Department Q, Copenhagen's cold cases division led by Detective Carl Mørck, into a deeply dangerous - and deeply personal - case: a case that not only reveals dark secrets about the past, but has deadly implications for the future.

You need clues. You need time. You need a motive. You won’t have any of them.When a whole family is murdered in Stockholm, Detective Inspector Joona Linna knows there is only one person who can help find the perpetrator. Erik Maria Bark, retired hypnotist, is called in to work with Josef Ek, a fifteen-year-old boy who witnessed the brutal murder of his family.Following a series of accusations by his patients, Erik is reluctant to return to his craft but makes an exception for Joseph Ek

It's December in the quiet Swedish town of Kymlinge, and the Hermansson family are gathering to celebrate father Karl-Erik and eldest daughter Ebba's joint landmark birthdays. But beneath the guise of happy festivities, tensions are running high, and it's not long before the night takes a dark and unexpected turn....

Penguin presents the audiobook edition of The Darkness by Ragnar Jonasson. A young woman, an asylum seeker from Russia, is found murdered on the seaweed-covered rocks of the Vatnsleysuströnd in Iceland. Detective Inspector Hulda Hermannsdottir of the Reykjavik Police is called to investigate this - the final case in her career before she is forced into retirement. When Hulda starts to ask questions, it isn't long before she realises that no-one can be trusted and that no-one is telling the whole truth.

When a six-year-old girl is found dead, hanging from a tree, the only clue the Oslo Police have to work with is an airline tag around her neck. It reads, 'I'm travelling alone'. Holger Munch, veteran police investigator, is immediately charged with reassembling his homicide unit. But to complete the team, he must convince his erstwhile partner, Mia Krüger - a brilliant but troubled investigator - to return from the solitary island where she has retreated with plans to take her own life.

A family is gunned down in the snow, but one of the children survives. Three years on, that child takes revenge, and the Snow Killer is born. But then, nothing - no further crimes are committed, and the case goes cold. 50 years later, has the urge to kill been reawakened? As murder follows murder, the detective team tasked with solving the crimes struggle with the lack of leads. It’s a race against time and the weather - each time it snows, another person dies.

After four years behind bars notorious serial killer Thomas Kerr is ready to talk. And Chief Inspector William Wisting has been waiting to listen. Kerr has finally agreed to lead the police to his final victim's grave. But the expedition goes horribly wrong after his escape deep into the Norwegian forest. Wisting must launch a frantic search to find this cold-blooded killer before he strikes again. But the body of another woman, killed weeks before, has been found. Murdered in the same way as Kerr's victims.

Siglufjörður: an idyllically quiet fishing village in Northern Iceland, where no one locks their doors - accessible only via a small mountain tunnel. Ari Thór Arason: a rookie policeman on his first posting, far from his girlfriend in Reykjavik - with a past that he’s unable to leave behind.

July 2007. A letter arrives on Inspector Barbarotti’s doorstep detailing a murder that is about to take place in his quiet Swedish town. By the time the police track down the subject of the letter, he is already dead. So when a second letter arrives, then a third, and a fourth, it’s a game of cat and mouse to stop the killer before he can make good on all of his promises.

Two countries in the grip of winter. On the coldest day of the year, Sweden's Minister for Justice steps into a blizzard - and disappears. Who has taken him? That same night, across the Baltic Sea, a Danish celebrity is at her home, locked in and cut off from the snow. Then she hears footsteps in her living room. Who is in her house? 

The police make a terrible discovery in a suburb of Copenhagen. A young woman has been killed and dumped at a playground. One of her hands has been cut off, and above her hangs a small doll made of chestnuts. Young detective Naia Thulin is assigned the case. Her partner is Mark Hess, a burned-out investigator who's just been kicked out of Europol's headquarters in The Hague. They soon discover a mysterious piece of evidence on the chestnut man - evidence connecting it to a girl who went missing a year earlier and is presumed dead, the daughter of politician Rosa Hartung. 

At each abandoned crime scene there's a hidden clue: a tiny metal cog, almost invisible to the naked eye. Someone is sending Detective Sam Berger a message, someone who knows that only he will understand the cryptic trail. When another teenage girl disappears without trace, Sam must convince his superiors that they’re dealing with a serial killer. As the police continue the hunt to find the latest victim, Sam is forced to unearth long-buried personal demons. He has no choice if he is to understand the killer's darkly personal message before time runs out. 

When she's not digging up bones or other ancient objects, Ruth Galloway lectures at the University of North Norfolk. She lives happily alone in a remote place called Saltmarsh overlooking the North Sea and, for company; she has her cats Flint and Sparky, and Radio 4. When a child's bones are found in the marshes near an ancient site that Ruth worked on ten years earlier, Ruth is asked to date them.

The unabridged, digital audiobook edition of Jussi Adler-Olsen’s Mercy, Scandinavia’s new bestselling crime phenomenon. Read by the actor Steven Pacey. At first the prisoner scratches at the walls until her fingers bleed. But there is no escaping the room. With no way of measuring time, her days, weeks, months go unrecorded. She vows not to go mad. She will not give her captors the satisfaction.