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'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?

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.

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? 

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.  

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.

One moonlit night, the bodies of two young people are discovered lying entwined on a blanket in the woods. The young man is clutching a red rose. It appears to be a lovers' suicide pact.... Until Detective Nikki Galena and DS Joseph Easter look more closely. Romeo and Juliet, as they decide to call them, were murdered somewhere else and brought to the woods. But why? Then another young couple are found dead, again beautifully posed as lovers. 

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 faces her toughest challenge yet. Can she save her team and herself from a cruel and determined adversary who will stop at nothing to harm Nikki and her colleagues? First she must work out who wants revenge against her or one of her detectives. Full of twists and turns, this is a crime novel that will keep listeners riveted until the stunning ending.

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.

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.   

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 DI Rowan Jackman and DS Evans are told that the IT boss has disappeared, they soon suspect foul play. Orla Cracken, known as Orac, is no ordinary techie; she was once a field agent traveling abroad undercover, working for the government. Meanwhile DC Robbie Melton discovers that two people, both urban explorers, have mysteriously disappeared whilst out exploring abandoned buildings. One went missing at a disused airfield, but was it a military base, or was it civilian?

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.

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.