In a peaceful retirement village, four unlikely friends meet weekly in the Jigsaw Room to discuss unsolved crimes; together, they call themselves the Thursday Murder Club. When a local developer is found dead with a mysterious photograph left next to the body, the Thursday Murder Club suddenly find themselves in the middle of their first live case.

At the end of her first unsuccessful season out in society, Lady Georgiana has all but given up on attracting a suitable man - until she receives an invitation to a masked Halloween ball at Broxley Manor. Georgie is uncertain why she was invited, until she learns that the royal family intends to marry her off to a foreign prince, one reputed to be mad.

The story opens with the apparently accidental drowning of a sixth form student in the Norfolk countryside. As a matter of routine, or so it seems, the case passes across the desk of Detective Sergeant Smith, recently returned to work after an internal investigation into another case that has led to tensions between officers at Kings Lake police headquarters. As an ex-DCI, Smith could have retired by now, and it is clear that some of his superiors wish that he would do so.

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.

Lady Emily Hardcastle is an eccentric widow with a secret past. Florence Armstrong, her maid and confidante, is an expert in martial arts. The year is 1908 and they've just moved from London to the country, hoping for a quiet life. But it is not long before Lady Hardcastle is forced out of her self-imposed retirement. There's a dead body in the woods, and the police are on the wrong scent. Lady Hardcastle makes some enquiries of her own, and it seems she knows a surprising amount about crime investigation...

Two years ago, a hostile Prime Minister launched the Monochrome inquiry, investigating "historical over-reaching" by the British Secret Service “to investigate historical over-reaching.” Monochrome’s mission was to ferret out any hint of misconduct by any MI5 officer—and allowed Griselda Fleet and Malcolm Kyle, the two civil servants seconded to the project, unfettered access to any and all confidential information in the Service archives in order to do so. But MI5’s formidable First Desk did not become Britain’s top spy by accident, and she has successfully thwarted the inquiry at every turn.

Miss Busby helped Major Heathcliff Lennox solve a series of murders at Bloxford in the Cotswolds. Now, she finds herself drawn into a new murder, but this time, it's just her, and she must rely on her sharp mind and sharper wits to catch a Cotswolds killer, along with a handsome police inspector and a reporter who's keen to make her mark.

Spring, 1918. The Great War is at a crucial stage, the Germans are making one last push into France, and the Allies are struggling to hold them back. Battle lines are shifting, and men, and their machines, are being sent up and down the front to shore up defenses. Major Heathcliff Lennox, and his batman Greggs, are told to report to their new HQ. They set off on a sunlit day to fly the distance, but the enemy is never far away, and disaster strikes. They're sent crashing to the ground behind enemy lines, where life, death, and love await.

Feisty, passionate Beatrice Steele has never fit the definition of a true lady, according to the strict code of conduct that reigns in Swampshire, her small English township—she is terrible at needlework, has absolutely no musical ability, and her artwork is so bad it frightens people. Nevertheless, she lives a perfectly agreeable life with her marriage-scheming mother, prankster father, and two younger sisters— beautiful Louisa and forgettable Mary. But she harbors a dark secret: She is obsessed with the true crime cases she reads about in the newspaper.

"So I thought I might take up paragliding. You know, buy one on eBay and just jump off the cliff one morning." Emily Willows is middle-aged, widowed, wealthy, and bored. When she makes those flippant remarks to her son over coffee one Friday, she has no inkling that within a few hours she will be facing the most terrifying situation of her life.

In North Devon, where two rivers converge and run into the sea, Detective Matthew Venn stands outside the church as his estranged father’s funeral takes place. On the day Matthew left the strict evangelical community he grew up in, he lost his family, too. Now, as he turns and walks away again, he receives a call from one of his team. A body has been found on the beach nearby: a man with a tattoo of an albatross on his neck, stabbed to death. The case calls Matthew back to the people and places of his past, as deadly secrets hidden at their hearts are revealed.

Chief Inspector Armand Gamache of the Surêté du Québec and his team of investigators are called in to the scene of a suspicious death in a rural village south of Montreal. Jane Neal, a local fixture in the tiny hamlet of Three Pines, just north of the U.S. border, has been found dead in the woods. The locals are certain it’s a tragic hunting accident and nothing more, but Gamache smells something foul in these remote woods, and is soon certain that Jane Neal died at the hands of someone much more sinister than a careless bowhunter.

In "Murder at the Mousetrap," the first Bunburry book, fudge-making and quaffing real ale in the local pub are matched by an undercurrent of passion, jealousy, hatred and murder - laced with a welcome dose of humour. Alfie McAlister has retreated from London to the peace and quiet of the country to recover from a personal tragedy. But an accidental death - which may have been no accident - reveals that the heart of England is far from the tranquil backwater he imagined.

Northern Ireland, spring 1981. Hunger strikes, riots, power cuts, a homophobic serial killer with a penchant for opera, and a young woman’s suicide that may yet turn out to be murder: on the surface, the events are unconnected, but then things—and people—aren’t always what they seem. Detective Sergeant Duffy is the man tasked with trying to get to the bottom of it all. It’s no easy job—especially when it turns out that one of the victims was involved in the IRA but was last seen discussing business with someone from the loyalist Ulster Volunteer Force.

Ian Rutledge returns to his career at Scotland Yard after years fighting in the First World War. Unknown to his colleagues he is still suffering from shell shock, and is burdened with the guilt of having had executed a young soldier on the battlefield for refusing to fight. A jealous colleague has learned of his secret and has managed to have Rutledge assigned to a difficult case which could spell disaster for Rutledge whatever the outcome. A retired officer has been murdered, and Rutledge goes to investigate.