It begins with a letter... The letter contains a request - think of a number, any number - and a sealed envelope. Inside the envelope is that number... When Dave Gurney, retired NYPD homicide detective, is contacted by an old college acquaintance about some startling letters he’s been receiving, it is at first little more than a diverting but sinister puzzle. Until the acquaintance is brutally killed.Suddenly Gurney finds himself in the middle of a murder investigation that makes no sense.

Detective Miles Jensen is called to the lawless town of Santa Mondega to investigate a spate of murders. This would all be quite ordinary in those rough streets, except that Jensen is the Chief Detective of Supernatural Investigations. The breakneck plot centres around a mysterious blue stone, 'The Eye of the Moon', and the men (and women) who all want to get their hands on it: a mass murderer with a drink problem, a hit man who thinks he's Elvis and a pair of monks among them.

Nick Horrigan has finally put his traumatic past behind him...until a SWAT team smashes into his place in the middle of the night. He's told that a terrorist has seized control of a nuclear power plant and is threatening to blow it up... Unless he can talk to Nick. As Nick rockets toward the truth, peeling back layer after layer of lies and deception, only one thing is certain: the long-buried secret, tied to the traumas of his own past, threatens his life at every turn.

Van Shaw was raised to be a thief, but at the age of 18 he abruptly abandoned the illicit life and joined the US Army, leaving behind Seattle and his grandfather who taught him the trade. But after 10 years of estrangement, Van's grandfather has suddenly asked him to come home. He does so only to find his grandfather shot in the head and bleeding out on the kitchen floor....

First, Patrick receives a DVD in the post. It shows footage of him and his wife Ariana walking, dressing, going to work - all filmed by cameras hidden in their house. Someone is clearly out to get him. And then the email arrives: GO ALONE. TELL NO ONE. DO WHAT WE SAY. OR SHE DIES. Patrick’s life is turned upside down. Suddenly this has become a matter of life and death.

Tormented and racked with guilt over the brutal slaying of his wife and daughter, Charlie Parker, ex-cop with the NYPD, agrees to track down a missing girl. It is a search that will lead him into an abyss of evil. At the same time, he is warned by an old black woman in Louisiana that "The Travelling Man" is about to strike again. Multiple strands converge with a horrific confrontation in which hunter and hunted are intimately connected by guilt.

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.

Ambushed and drugged, Evan Smoak wakes up in a locked room with no idea where he is or who has captured him. As he tries to piece together what's happened, he receives a desperate call for help. With time running out, he will need to out-manoeuvre a powerful opponent to have any chance of escape. He's got to save himself to protect those whose lives depend on him...or die trying.

Amos Decker is a former professional football player whose career was ended by a terrible hit. Now a police detective, Amos is still haunted by a side effect from the accident he can never forget. One night Decker comes home from a stakeout to find his wife, young daughter, and brother-in-law horrifically murdered. Obviously scarred and nearly broken, Decker has to use his skills as a detective and his unusual brain capacity to try to catch the monster who killed his family.

Was the biggest case of his career the worst mistake he ever made? Ten years ago, DCI Jack Logan stopped the serial child-killer dubbed "Mister Whisper", earning himself a commendation, a drinking problem, and a broken marriage in the process...When another child disappears a hundred miles north in the Highlands, Jack is sent to lead the investigation and bring the boy home. But as similarities between the two cases grow, could it be that Jack caught the wrong man all those years ago?

One psychopath. One killer. The Stabber. Six victims, all wife beaters. Each stabbed to death through their left eye. Six victims, all wife beaters. Each stabbed to death through their left eye. The cobbled lanes and backstreets of St Andrews provide the setting for these brutal killings.

When the body of a young woman is discovered in a derelict cottage in the middle of Los Angeles National Forest, Homicide Detective Robert Hunter finds himself entering a horrific and recurring nightmare. Naked, strung from two wooden posts, the victim was sadistically tortured before meeting an excruciatingly painful death. All the skin has been ripped from her face - while she was still alive.

‘I know you, don’t I?’ Five words - that’s all it takes to plunge Mike Wingate and his family into mortal danger. Mike doesn’t recognise the crippled stranger who approaches him at a party... but the stranger seems to know all about him. What has Mike done? Do they have the wrong man? Overnight, the threats become attacks, and Mike, his wife, and their young daughter learn they aren’t safe anywhere - especially not their own home. He doesn’t know who they are. He doesn’t know what they want.

The Dark Yorkshire Series - fast-paced crime fiction stories featuring DI Nathaniel Caslin. The first three full-length books in this best-selling series are brought together for the first time in this great value set. 

If you love mysteries with action, suspense and a touch of humor and romance, then the David Wolf series is for you.