There must be a victim. A suspect. A detective. The rest is just shuffling the sequence. Expanding the permutations. Grant McAllister, a professor of mathematics, once sat down and worked them all out – calculating the different orders and possibilities of a mystery into seven perfect detective stories he quietly published. But that was thirty years ago. Now Grant lives in seclusion on a remote Mediterranean island, counting the rest of his days.Until Julia Hart, a sharp, ambitious editor knocks on his door. Julia wishes to republish his book, and together they must revisit those old stories: an author hiding from his past, and an editor, keen to understand it.But there are things in the stories that don’t add up. Inconsistencies left by Grant that a sharp-eyed editor begins to suspect are more than mistakes. They may be clues, and Julia finds herself with a mystery of her own to solve.

    He has already claimed three lives, and he won’t stop there. Only this time there is a witness. But she isn’t talking. Enter Kate Conlan, former FBI agent turned victim/witness advocate. Not even she can tell if the reluctant witness is a potential victim or something more troubling still. Her superiors are interested only because the latest victim may be the daughter of Peter Bondurant, an enigmatic billionaire. When Peter pulls strings, Special Agent John Quinn gets assigned to the case. But the FBI’s ace profiler of serial killers is the last person Kate wants to work with, not with their troubled history. Now she faces the most difficult role of her career—and her life. For she’s the only woman who has what it takes to stop the killer . . . and the one woman he wants next.

    On a business trip to Paris to promote their luxury brand, Niamh learns of Ruairidh's affair, and then looks on as he and his lover are killed by a car bomb. She returns home to Lewis, bereft.I'LL ALWAYS BE THERE FOR YOUNiamh begins to look back on her life with Ruairidh, desperate to identify anyone who may have held a grudge against him. The French police, meanwhile, have ruled out terrorism, and ruled in murder - and sent Detective Sylvie Braque to shadow their prime suspect: Niamh.I'LL KEEP YOU SAFE, NO MATTER WHATAs one woman works back through her memories, and the other moves forward with her investigation, the two draw ever closer to a deadly enemy with their own, murderous, designs.

    for life to go horribly wrong.When Felix lets himself in to Number 3 Black Lane, he’s there to perform an act of kindness and charity: to keep a dying man company as he takes his final breath ... But just fifteen minutes later Felix is on the run from the police – after making the biggest mistake of his life.Now his routine world is turned upside down as he tries to discover what went wrong, while staying one step ahead of the law.

    To that moment when the masked man appeared from the doorway of the church and looked into his eyes.‘Is there anything distinctive, Sarge?’ asks Nielsen.‘Yes’, he says, with the sudden sense that memory is important.‘There were tears in his eyes.’DS Aector McAvoy is a man with a troubled past. His unwavering belief in justice has made him an outsider in the police force he serves.When three seemingly unconnected people are brutally murdered in the weeks before Christmas, the police must work quickly to stop more deaths. It is only McAvoy who can see the connection between the victims. A killer is playing God – and McAvoy must find a way to stop the deadly game.

    A few days before Christmas, his peace is shattered and he is thrust back into the murky world of murder when a young woman is found dead amongst the ancient ruins of the nearby Priory.When former local girl Dr Anna Taylor arrives back on the island as a police consultant, old memories swim to the surface making her confront her difficult past. She and Ryan struggle to work together to hunt a killer who hides in plain sight, while pagan ritual and small-town politics muddy the waters of their investigation.

    No more traffic gridlock or getting stuck on the tube in tunnels (you’re claustrophobic); now you’ve got an iconic Thames view, fresh air ?— a whole lifestyle upgrade. You’ve made new friends onboard — led by your hedonistic young neighbour, Kit ?— and just had your first ‘water rats’ Christmas drinks. But the first day back after Christmas, Kit isn’t on the morning boat. The river landmarks are all the same, but something’s off. You disembark to find the police waiting. Kit’s wife, Melia, has reported him missing and another passenger witnessed the two of you arguing on the last boat home after your drinks. Police say you had a reason to lash out at him. To kill him.You protest. You and Kit are friends ?— ask Melia, she’ll vouch for you. And who exactly is this other passenger pointing the finger? What do they know about your private lives? No, whatever coincidences might have occurred that night, you are innocent, totally innocent.Aren’t you?

    Paris returns to her heartland of gripping psychological suspense in The Therapist--a powerful tale of a house that holds a shocking secret.When Alice and Leo move into a newly renovated house in The Circle, a gated community of exclusive houses, it is everything they’ve dreamed of. But appearances can be deceptive…As Alice is getting to know her neighbours, she discovers a devastating secret about her new home, and begins to feel a strong connection with Nina, the therapist who lived there before.Alice becomes obsessed with trying to piece together what happened two years before. But no one wants to talk about it. Her neighbors are keeping secrets and things are not as perfect as they seem…

    . . . At first, the murder scene appears sad, but not unusual: a young woman undone by drugs and prostitution, her six-year-old daughter dead alongside her. But then detectives find a strange piece of evidence in the squalid house: the platinum credit card of a very wealthy--and long dead--steel tycoon. What is a heroin-addicted hooker doing with the credit card of a well-known and powerful man who died months ago? This is the question that the most junior member of the investigative team, Detective Constable Fiona Griffiths, is assigned to answer.But D.C. Griffiths is no ordinary cop. She's earned a reputation at police headquarters in Cardiff, Wales, for being odd, for not picking up on social cues, for being a little overintense. And there's that gap in her past, the two-year hiatus that everyone assumes was a breakdown. But Fiona is a crack investigator, quick and intuitive. She is immediately drawn to the crime scene, and to the tragic face of the six-year-old girl, who she is certain has something to tell her . . . something that will break the case wide open.Ignoring orders and protocol, Fiona begins to explore far beyond the rich man's credit card and into the secrets of her seaside city. And when she uncovers another dead prostitute, Fiona knows that she's only begun to scratch the surface of a dark world of crime and murder. But the deeper she digs, the more danger she risks--not just from criminals and killers but from her own past . . . and the abyss that threatens to pull her back at any time.

    Then a talented young female student goes missing on the marsh and Nikki and Joseph find themselves joining forces with a master criminal in their efforts to save her. They need to look behind the masks, but when they do, they find something more sinister and deadly than they ever expected . . .

    Coco is three years old. When identical twin Coco goes missing during a family celebration, there is a media frenzy. Her parents are rich and influential, as are the friends they were with at their holiday home by the sea. But what really happened to Coco?Over two intense weekends - the first when Coco goes missing and the second twelve years later at the funeral of her father - the darkest of secrets will gradually be revealed... Taut, emotive and utterly compelling, an unputdownable 'ripped from the headlines' novel that you will want to talk about with everyone you know.

    Two violent predators walk through the door. Nothing will ever be the same.When the two strangers turn up at Rowena Cooper's isolated Colorado farmhouse, she knows instantly that it's the end of everything. For the two haunted and driven men, on the other hand, it's just another stop on a long and bloody journey. And they still have many miles to go, and victims to sacrifice, before their work is done.For San Francisco homicide detective Valerie Hart, their trail of victims-women abducted, tortured and left with a seemingly random series of objects inside them-has brought her from obsession to the edge of physical and psychological destruction. And she's losing hope of making a breakthrough before that happens.But the murders at the Cooper farmhouse didn't quite go according to plan. There was a survivor, Rowena's ten-year-old daughter Nell, who now holds the key to the killings. Injured, half-frozen, terrified, Nell has only one place to go. And that place could be even more dangerous than what she's running from.In this extraordinary, pulse-pounding debut, Saul Black takes us deep into the mind of a psychopath, and into the troubled heart of the woman determined to stop him.

    The only difference this time: she’s the final victim.Catching monsters helps FBI agent Kate Hayden keep her nightmares at bay. Now an urgent call brings her back to San Antonio, the scene of her violent past. A brutal new murder shows hallmarks of a serial killer nicknamed the Samaritan. Tricky part is, Kate already caught him.Either Kate made a deadly error, or she’s got a copycat on her hands. Paired with homicide detective Theo Mazur, she quickly realizes this murder is more twisted than it first appeared. Then a second body is found, the mode of death identical to a different case that Kate thought she’d put behind her.Now Kate and Detective Mazur aren’t just working a homicide; the investigative pair is facing a formidable enemy who knows Kate intimately. While Mazur is personally trying to protect Kate, the closer they are drawn to the killer, the clearer it becomes that in this terrifying game, there is only one rule: don’t believe everything you see…

    Once John Rebus served in Britain's elite SAS. Now he's an Edinburgh cop who hides from his memories, misses promotions and ignores a series of crank letters. But as the ghoulish killings mount and the tabloid headlines scream, Rebus cannot stop the feverish shrieks from within his own mind. Because he isn't just one cop trying to catch a killer, he's the man who's got all the pieces to the puzzle... Knots and Crosses introduces a gifted mystery novelist, a fascinating locale and the most compellingly complex detective hero at work today.

    John Baldwin, find themselves in a joint investigation pursuing a vicious murderer. The Southern Strangler is slaughtering his way through the Southeast, leaving a gruesome memento at each crime scene -- the prior victim's severed hand.Ambitious TV reporter Whitney Connolly is certain the Southern Strangler is her ticket out of Nashville; she's got a scoop that could break the case. She has no idea how close this story really is -- or what it will cost her.As the killer spirals out of control, everyone involved must face a horrible truth -- that the purest evil is born of private lies.