*THE INTERNATIONAL BESTSELLER* 'Nerve-wracking dark suspense with a masterly resolution. Anders Roslund is a marvellously talented author' Erik Axl Sund, bestselling author of THE CROW GIRL 'A perfect example of Scandi noir' The Times *** Two little girls go missing on the same day in Stockholm. Their disappearances are never explained. In time, the investigations are abandoned. A chance discovery puts Detective Ewert Grens back on the trail five years later. His own personal trauma makes him determined to find out what happened to these children who were snatched from a supermarket and a car park and never seen again. His search leads him into the recesses of the dark web and the discovery of a paedophile ring that can only be cracked from the inside. Grens is forced to call upon his retired partner, Piet Hoffman, the best undercover operative he knows, to try to infiltrate the group. They will have only one chance - but are they up to the darkest challenge of their lives? *** 'If you thrill to the chills of Scandinavian noir, chances are you've read something by Anders Roslund. He has two strong prose styles - dark and darker' New York Times 'A complex, white-knuckle read' Observer FROM THE WINNER OF THE Crime Writers' Awards International Dagger and the GLASS KEY AWARD.

*THE INTERNATIONAL BESTSELLER* 'Nerve-wracking dark suspense with a masterly resolution. Anders Roslund is a marvellously talented author' Erik Axl Sund, bestselling author of THE CROW GIRL 'A perfect example of Scandi noir' The Times *** Two little girls go missing on the same day in Stockholm. Their disappearances are never explained. In time, the investigations are abandoned. A chance discovery puts Detective Ewert Grens back on the trail five years later. His own personal trauma makes him determined to find out what happened to these children who were snatched from a supermarket and a car park and never seen again. His search leads him into the recesses of the dark web and the discovery of a paedophile ring that can only be cracked from the inside. Grens is forced to call upon his retired partner, Piet Hoffman, the best undercover operative he knows, to try to infiltrate the group. They will have only one chance - but are they up to the darkest challenge of their lives? *** 'If you thrill to the chills of Scandinavian noir, chances are you've read something by Anders Roslund. He has two strong prose styles - dark and darker' New York Times 'A complex, white-knuckle read' Observer FROM THE WINNER OF THE Crime Writers' Awards International Dagger and the GLASS KEY AWARD.

The explosive third novel in the Ewert Grens-Piet Hoffmann trilogy, which began with Three Seconds. Stockholm, Sweden. Seventy-three refugees have been found dead, suffocated in a container at Varta harbour. Niamey, Niger. Ewert Grens arrives in a city he's never heard of, in search of a man he never thought he would see again. Piet Hoffmann has again got himself in too deep, infiltrating a West African trafficking ring. He thinks he has two weeks to extricate himself, but will learn that his life, and that of countless defenceless people, now hangs on his actions during three desperate hours.

From the publisher of Jo Nesbo comes a new international smash-hit Scandi thriller. Set over three explosive days, this is compulsive, heart-pounding storytelling that will keep you on the edge of your seat.He thought she was safe. Then the past came knocking.Seventeen years ago, Inspector Ewert Grens was called to the scene of a brutal crime. A family had been murdered, with only their five-year-old daughter left behind. The girl was placed under witness protection, but while the case went cold, Grens is still haunted by the memory. When he learns that the apartment where the crime took place is now the scene of a mysterious break-in, Grens fears that someone is intent on silencing the only witness. He must race to find her...before they do. Perfect for fans of Jo Nesbo, Steig Larsson and Samuel Bjork - don't miss out on the latest Scandi-crime sensation.'A masterpiece of a thriller. Brutal, gripping, intelligent. It left me breathless' Liza Marklund'An edge of your seat thriller about revenge and treachery during three fateful days' Vi Läser'Will keep even the most well-read and quality-conscious crime readers in a breathtaking iron grip from beginning to end' DBC, Denmark

**THE INTERNATIONAL BESTSELLER** Set over three explosive days, this is compulsive, heart-pounding storytelling that will keep you on the edge of your seat. He thought she was safe. Then the past came knocking. Seventeen years ago, Inspector Ewert Grens was called to the scene of a brutal crime. A family had been murdered, with only their five-year-old daughter left behind. The girl was placed under witness protection, but while the case went cold, Grens is still haunted by the memory. When he learns that the apartment where the crime took place is now the scene of a mysterious break-in, Grens fears that someone is intent on silencing the only witness. He must race to find her...before they do. 'A perfect example of Scandi noir' The Times 'Roslund has two strong prose styles - dark and darker - and both are on show in KNOCK KNOCK' New York Times What readers are saying about KNOCK KNOCK 'I know what I like and I like this VERY MUCH!!' ***** 'Spectacular' ***** 'Absolutely brilliant read' ***** 'I love this series' ***** 'Once I started reading it I couldn't stop' *****

The explosive third novel in the Ewert Grens--Piet Hoffmann trilogy, which began with Three Seconds. Stockholm, Sweden. Seventy-three refugees have been found dead, suffocated in a container at Varta harbour. Niamey, Niger. Ewert Grens arrives in a city he's never heard of, in search of a man he never thought he would see again. Piet Hoffmann has again got himself in too deep, infiltrating a West African trafficking ring. He thinks he has two weeks to extricate himself, but will learn that his life, and that of countless defenceless people, now hangs on his actions during three desperate hours.

THE INTERNATIONALLY BESTSELLING AUTHORS OF THREE SECONDS AND CELL 8 INTRODUCE DCI EWERT GRENS TO THE CRUEL REALITY OF HUMAN TRAFFICKING. 'This is crime writing at its most ambitious and morally complex' Financial Times Lydia Grajauskas will never forget the face. The face of the trafficker who brought her to Stockholm: the man responsible for three unrelenting years of forced prostitution and slavery. DCI Ewert Grens will never forget the name. The name of the prisoner the day his life was destroyed: the man responsible for twenty-five years of torturous heartache. Sweden will never forget their revenge . . . Box 21 is a steely, airtight thriller containing both the harshest aspects of degradation and retaliation, and the toughest questions surrounding the morality of violent and obsessive reprisal. Looking for a companion to Box 21? Look no further than Roslund & Hellstroem's Pen 33 . . .

THE MILLION-SELLING AND CWA AWARD-WINNING DCI EWERT GRENS SERIES CONTINUES, AS ROSLUND AND HELLSTROEM SHIFT THEIR SOCIAL SPOTLIGHT TO SWEDEN'S NETWORK OF CHILD GANGS. 'You will find yourself utterly engaged from the very first chapter' Independent 'Very bold and very scary . . . a book to appreciate' Crime Thriller Fella TWO SIDES. In the Stockholm suburb of Raby, tensions between the Swedish authorities and organised juvenile gangs are approaching critical mass. TWO SENTINELS. Investigators Jose Pereira and DCI Ewert Grens are increasingly disturbed by the escalating militancy of these criminal enterprises. TWO SOLDIERS. The police are of little concern to blood brothers Leon and Gabriel. They have vowed to secure dominance in the area, at any cost. A dangerous collision awaits both sides. And so does a shocking revelation that will make all four men question the direction their lives have taken. Loved Two Soldiers and now want to start the DCI Ewert Grens series from the beginning? Take a look at Pen 33 . . .

Three years ago, Lydia and Alena were two hopeful girls from Lithuania. Now they are sex slaves, lured to Sweden with the promise of better jobs and then trapped in a Stockholm brothel. Suddenly they are given an unexpected chance at freedom and with it the opportunity to take revenge on their enslavers and reclaim the lives and dignity they once had. What will happen now that the tables are turned and the victims fight back? "Box 21" is a mind-blowing psychological thriller of the highest order.

INFILTRATOR

One-time Swedish government agent Piet Hoffmann is on the run from the life prison sentence he escaped: living under a false identity with his family in Calí, Colombia.

INFORMANT

When Hoffmann is offered employment by a Colombian drug mafia, and is simultaneously approached by the US DEA to infiltrate the same cartel, he says yes to both.

IN TOO DEEP

However, when America settles on an enemy for their next War on Terror, Colombia, the US government and the cartel are faced with the same problem. Piet Hoffmann.

Hoffmann is marked. Yet help will come from unlikely quarters: DCI Ewert Grens - the enemy who Hoffmann once tricked - will now become the only ally he can trust.

THE SUNDAY TIMES 60 BEST THRILLERS AND CRIME NOVELS OF THE PAST 6 YEARS PICK - A CAPITAL CRIME AND A CHILLING CONSPIRACY AWAIT DCI EWERT GRENS. 'A powerful, multi-layered novel' Guardian 'A mesmerising crime narrative' Independent ONE CELL A convicted murderer dies awaiting execution on Ohio's death row. ONE CRIMINAL Six years later, the same man walks into a Stockholm police station. ONE CONSPIRACY He's defeated death. He's played the unplayable system. And now Detective Superintendent Ewert Grens must discover how. Looking for another novel in the million-selling DCI Ewert Grens series? Try Two Soldiers . . .

WINNER OF THE 2011 CWA INTERNATIONAL DAGGER. A NEW YORK TIMES TOP 5 BESTSELLER. AND SOON TO BE A HOLLYWOOD BLOCKBUSTER - SCANDINAVIAN CRIME DOES NOT GET MORE EXPLOSIVE. 'Extraordinarily compelling' Daily Mail 'Three Seconds is just about how long it feels it takes to read Three Seconds . . . Terrific' Time Out ONE MURDER. Piet Hoffmann is the Swedish police force's best undercover operative. Not even his family know of his double identity. Yet when a drug deal with the Polish mafia goes fatally wrong, his secret life begins to crumble around him. TWO MEN. Detective Inspector Ewert Grens is charged with investigating the drug-related killing. Unaware of Hoffmann's true identity, he believes himself to be on the trail of a dangerous psychopath. THREE SECONDS. Hoffmann must desperately maintain his cover; else he is a dead man walking. But, in the doggedly-perceptive Ewert Grens, he has just made the most relentless of enemies. Can't get enough of DCI Ewert Grens? Then check out Cell 8, named by the Sunday Times as one of the 60 Best Thrillers and Crime Novels of the Past 6 Years.

THE FIRST IN THE MILLION-SELLING DCI EWERT GRENS SERIES, WINNER OF THE GLASS KEY 2005 FOR BEST SCANDINAVIAN CRIME NOVEL OF THE YEAR, AND AS HARD-HITTING A CRIME NOVEL AS YOU WILL EVER READ. 'A must read' Observer Bernt Lund harbours a sickness. He is a monster: in the mind of society, in the mind of his nine-year-old victims' parents, and in the mind of his fellow inmates. Lennart Oscarsson has a situation. The worst scenario imaginable for Aspsås prison's Department for Sexual Crimes. These two men's actions are about to hand DCI Ewert Grens the most profoundly sickening and impossibly sensitive case of his career, and in Stockholm's history. Pen 33 is both an unforgiving collision between a time-hardened policeman and a truly heinous crime, and an unflinching exploration of what people - whether criminals or victims - are capable of when they choose to relinquish self-control. Loved Pen 33 and hungry for another DCI Ewert Grens thriller? If so, choose the next novel in the series, Box 21 . . .