Detective Joseph Easter's daughter discovers a cottage hidden in some trees on a large fenland farm. Someone has been living there. The farm owner's wife has been receiving sinister pagan artifacts, including a witch's knife. Are they some sort of warning or message? Joseph and his daughter search the cottage and find an old satchel. Inside are photos of a beautiful girl, Jennifer Cowley. She went missing 15 years ago. She'd been stalked by a young man, who was convicted of her murder, even though her body was never found.

The domestic bliss of Detective Inspector Rowan Jackman, of Fenland Constabulary, doesn’t last long. His old nemesis, serial killer Alistair Ashcroft, is back in town and ready to tidy up unfinished business. Ashcroft sends a sinister text to DS Marie Evans. His opening move in what will prove to be a lethal game of cat-and-mouse. Yet for all his taunts, where is he? In a county crawling with police on the look-out for him, Ashcroft is nowhere to be found. Everyone Jackman cares about is in danger. Alongside the hunt for Ashcroft, however, normal police work must continue.

The new Kings Lake Central murder squad is about to spend its first morning on team-building exercises and reviewing cold cases when the call comes in that the body of one of the city's rough sleepers has been found in a shop doorway. It happens, someone says, he isn't the first to die on the streets and he won't be the last, but the story the new team begins to uncover is far from routine.  

Revellers are flocking into Greenborough for the yearly Dark Greenborough Festival, a three-day event celebrating local folklore, superstition, and the darker side of life. What the public doesn't know is that there has been a warning sent to the police, saying that Greenborough will be a very dangerous place this year. The anonymous letter ends with the Latin phrase, Mors certa, hora incerta: Death is certain, the hour uncertain.  

A crime wave has hit town. The target is a highly sought-after brand of streetwear called Hybird X, clothing that costs a fortune and resells for unbelievable prices. Houses are burgled, kids mugged on the streets...and finally a young man dies, all for the sake of his shoes. Then another boy’s body is found in a pile of rubbish. Meanwhile illegal steroids are flooding the streets. And there are dark movements on the marshes. 

When Matt Ballard was starting out his career, three boys were murdered in the same area, the remote and bleak Gibbet Fen. When the main suspect was killed in a hit-and-run, the killings stopped. But Matt was not satisfied that the real murderer had been caught. Over 25 years later, Matt gets a photo in an unmarked envelope. It's of the Gibbet Fen crime scene. And the picture was taken before the murder took place. More photos arrive, relating to the historic murders, as well as intimate pictures of Matt's very secret private life.

DI Nikki Galena: A police detective with nothing left to lose, she's seen a girl die in her arms, and her daughter will never leave the hospital again. She's gotten tough on the criminals she believes did this to her. Too tough. And now she's been given one final warning: make it work with her new sergeant, DS Joseph Easter, or she's out.

DI Nikki Galena gets a series of anonymous calls. She is told the place, time, and who will die. But the messages are in a secret language used only by villains. Nikki and her team must decode the riddles and work out where the threats are coming from.

DI Nikki Galena faces a personal challenge which will stretch her to the limit. She must fulfill her father's dying wish and discover who the mysterious Eve is. Meanwhile, a dead drug dealer is found on an abandoned airfield that the locals say is haunted. The trail of both mysteries will lead to the most shocking discovery of Nikki's career and put her whole team in mortal danger. Full of twists and turns, this is a crime thriller that will keep you riveted until the shocking ending.

Detective Nikki Galena's friend and neighbor meets a tragic end, but there's more to his death than meets the eye. And someone terrible from DS Joseph Easter's past is back.

DI Nikki Galena's close friend Helen Brook is involved in a serious accident where she is trapped in a collapsed cellar. After her hard-won recovery, Helen is still getting flashbacks to a man she says was down there with her and who confessed to a murder. But no trace of this man can be found. Then Helen tells Nikki that someone is watching her. But is all this in her friend's imagination and part of her post-traumatic stress?

The Fens are burning, and Detective Nikki Galena faces a cat-and-mouse battle with a killer arsonist. Someone is lighting fires. First they target homes and businesses, but then a body is found at one of the crime scenes. More fires are lit. And at each one a single person dies. But the victims have led spotless lives, and apparently there's no connection between them. Meanwhile, the town is facing a very peculiar threat from a group of sinister Satanists led by a charismatic businessman. Who is burning with anger, and can Nikki stop them before anyone else dies? 

A skeleton is found in a shallow grave in the churchyard. But this was not an official burial. The victim was murdered decades ago. At the same time, Detective Nikki Galena and her team are investigating the brutal slaying of local businesswoman Madeline Prospero. She was a member of an exclusive and secretive drinking club called The Briar Patch. But they've got no suspects and no one is telling them the truth. Meanwhile, the buried skeleton leads them on a trail to the village of Quintin Eaudyke. This is a troubled place. In the late 70s and 80s a reign of terror was unleashed.

A young woman's body is found in a remote barn on the Fens. Before she was killed, one of her fingers had been cut off. Who is inflicting this violence and why? The young woman in the barn had been kept captive for some time. And the case shows strong similarities to an unsolved murder in Derbyshire. When another woman is found alive with similar injuries, the case grows even more complicated.

Detective Sergeant Chris Waters got the call at 05.29 that July morning. This is it, said DCI Reeve, you'll be first there, it's all yours, you're the crime scene manager. Suddenly, after months of waiting and wondering, Waters finds himself in at the deep end, and alone at the scene of a puzzling murder. As the investigation proceeds, the detectives at Kings Lake Central find themselves visiting familiar places and talking to some familiar faces, while old enmities reappear in the incident room. Before this is over, Chris Waters will need to make a career-changing decision.