The New York Times best-selling author of Magpie Murders and Moriarty brilliantly reinvents the classic crime novel once again with this clever and inventive mystery starring a fictional version of the author himself as the Watson to a modern-day Holmes, investigating a case involving buried secrets, murder, and a trail of bloody clues.

One evening in early August, while mashing potatoes for dinner, Connie McColl decides she’s had enough. Sixty-six-year-old wife and grandmother, Connie packs a bag, gets in her little green car and drives off on a journey from England to Scotland to rediscover lost friends and herself.

Three very different women come together to complete an environmental survey on the Northumberland countryside. Three women who, in some way or another, know the meaning of betrayal....For team leader Rachael Lambert the project is the perfect opportunity to rebuild her confidence after a double-betrayal by her lover and boss, Peter Kemp. Botanist Anne Preece, on the other hand, sees it as a chance to indulge in a little deception of her own. And then there is Grace Fulwell, a strange, uncommunicative young woman with plenty of her own secrets to hide.

Ria lived on Tara Road in Dublin with her dashing husband, Danny, and their two children. She fully believed she was happily married, right up until the day Danny told her he was leaving her to be with his young, pregnant girlfriend. By a chance phone call, Ria meets Marilyn, a woman from New England unable to come to terms with her only son's death and now separated from her husband. The two women exchange houses for the summer with extraordinary consequences, each learning that the other has a deep secret that can never be revealed.

Wolf Hadda's life was a fairytale - successful businessman and adored husband. But a knock on the door one morning ends it all. Universally reviled, thrown into prison, Wolf retreats into silence. Seven years later Wolf begins to talk to the prison psychiatrist and receives parole to return home. But there's a mysterious period in Wolf's past when he was known as the Woodcutter. Now the Woodcutter is back, looking for truth and revenge...

Dear Elizabeth, I've been watching you. I hope to see you...soon. Liz Cafferky is on the up. Rescued from her dark past by the owner of a drop-in centre for older men, Liz soon finds herself as the charity's face - and the unwilling darling of the Dublin media. Amidst her claustrophobic fame, Liz barely notices a letter from a new fan. But then one of the centre's clients is brutally murdered, and Elizabeth receives another, more sinister note. Running from her own ghosts, Liz is too scared to go to the police.

Clayton Miller's life is a mess. His career as one of the country's best comedy script writers has stalled and his long term girlfriend has left him for his ex best friend and ex writing partner. Just when he thinks his life couldn't get any worse, he commits a spectacularly public fall from grace and with the press hounding him, his agent banishes him to the middle of nowhere until the dust has settled.

A teacher goes missing under suspicious circumstances and a man is murdered at a local reservoir. For Detective Robyn Carter, there's no obvious link between the cases. But as she starts to delve into them, her investigations lead her to Abigail, perfect wife and mother to beautiful little Izzy. What was Abigail's connection to the victims? And why is she receiving threatening messages from an anonymous number?

Owen Hall drives into a petrol station to let his passenger use the facilities. She never comes back - and what's more, it seems she never even made it inside. When Owen raises a fuss, the police are called - and soon identify Owen himself as a possible culprit, not least because they already have him in the frame for another more sinister crime. Owen's always been a little different, and before long others in the community are baying for his blood. But this is a case where nothing is as it seems - least of all Owen Hall....

Walter has a rubbish job, so has Margaret. But when they meet through a dating agency, neither is who they seem. Margaret's married for a start, and Walter's encounter with her husband, Billy, leaves him black and blue. Billy's a dodgy accountant for politician and racketeer Pink Harrison, who is about to come unstuck.

When Catherine learns that she is dying, she remembers the words her husband once jokingly uttered and decides to leave him the ultimate posthumous gift: a time capsule containing photographs of their life together along with tape recordings in which she recounts every secret she ever kept, every unspoken thought whether loving or treacherous - the things they never said.

Cat Kinsella overcame a troubled childhood to become a detective constable. When she’s called to the scene of a murder, not far from the pub her estranged father still runs, she discovers that Alice Lapaine is dead. Cat and her team suspect Alice’s husband, until she receives a phone call that links the victim to Maryanne Doyle, a teenage girl who went missing in Ireland 18 years earlier. The call raises uneasy memories for Cat. Though she was only a child, Cat knew that her father wasn’t telling the truth when he denied knowing anything about Maryanne or her disappearance.

Ailsa Connolly was a brilliant psychologist and a respected criminologist. She was also a serial killer. Six years ago, DCI Sean Bracken caught her just before he was about to become her seventh victim. Every year on the anniversary of her incarceration, she taunts him with a phone call, giving him one message: "When I get out, I'll kill you." Now, Bracken has transferred back to Edinburgh and is thrown into the deep end on his first day back on duty. There's a killer who is emulating Ailsa, threatening to surpass her body count.

A girl is missing. Five years old, taken from outside her school. She has vanished, traceless. The police are at a loss; her parents are beyond grief. Their daughter is lost forever, perhaps dead, perhaps enslaved. But the biggest mystery is yet to come: one week after she was abducted, their daughter is returned. She has no memory of where she has been. And this, for her mother, is just the beginning of the nightmare.

The first girl had a bite mark on her neck, but they traced the DNA to her boyfriend. But the tabloids got hold of the story and called the killer 'The Rottweiler' and the name stuck. The latest murder takes place very near Inez Ferry's antique shop in Marylebone. When the Rottweiler’s trinkets start showing up in the shop, suddenly, everyone Inez knows is a suspect, and the killer feels all too close.