In the beautiful gardens of Shelley House a shocking discovery is made. A blackened hand dangles over the side of a wheelbarrow. The horrific scent of burnt flesh lingers in the air. Detectives Nikki Galena and Joseph Easter are called in to investigate.

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.

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.  

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? 

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.

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.

When everyone is sleeping, he comes into their houses. He takes one thing. A photo of their child. A sinister thief on a power trip or something even darker and more sinister? Detectives Jackman and Evans find themselves on the hunt for a highly unusual burglar who seemingly only steals photographs. But then, late one night, an elderly woman falls to her death after seeing someone in her home. Did she really fall, or was she murdered? 

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?

Grace Repton, a beautiful older woman, walks into the police station to tell Detective Matt Ballard she has information that could stop a murder. Her fiance, the infamous serial killer Jeremy Reader, has told her that he has a disciple who is going to kill using Reader's horrific methods. Reader murdered five women and was finally brought to justice by Detective Ballard. Reader is safely imprisoned in a high security prison, and claiming to be a reformed man who wants to help the police.   

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.

As the mists roll over the fens and enigmatic lights twinkle in the distance, only the locals know their way along the hidden paths through the mysterious watery terrain of one of England's most beautiful and sometimes dangerous places. Detective Matt Ballard may have retired but there's still plenty going on in the fens to keep him busy. Someone trashes an old lady's garden and daubs her isolated cottage with hateful graffiti. Emilia Swain seems to be totally harmless, so why is she being targeted?

When the body of a man is found dead in his remote, isolated home, DI Tom Janssen and his team struggle to understand what motive there could be to murder such an inoffensive, seemingly placid local character. The man lived alone and was well known in the community, but kept his distance from others, leading a haphazard way of life almost entirely off the grid. What secrets did he hide in his private life that might be worth killing for? As the team are about to understand, even the most nondescript of people can exist in a world darker than most of us will ever see....

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.

DCI Jack Logan should’ve known things were going too well. Genuinely happy for the first time in years, Jack has almost fooled himself into believing that the world is a decent place. But when the discovery of a mutilated body kicks off a series of grisly murders, Jack’s dream of a peaceful life rapidly begins to crumble around him. With friends in danger and enemies begging for his help, Jack must risk everything to protect the final would-be victim and stop the most monstrous killer he’s ever faced.