December 1927. Mystery-writer Marius Quin has one previous bestseller, endless looming mortgage payments, and no idea how to write his next book. When his childhood friend Lady Isabella Montague invites him to an intimate New Year’s Eve party hosted by a narcissistic actor, Marius seizes upon the distraction. With his perpetually glum Basset hound along for the ride, he navigates the snowy lanes to the opulent estate of Everham Hall. As the celebrations begin, fireworks light up the sky, champagne corks pop, and then the host is murdered…

Olivia Denis is a content young wife with a carefree life in late 1930s London. Then her world is shattered with the violent death of her husband, Reggie. The police want to call it a suicide and close the case, but Olivia knows Reggie couldn't possibly have fired the fatal shot. Further mysteries surface surrounding her husband's death. Did the trustworthy Foreign Office employee betray government secrets? Was his murder linked to the death of a German embassy clerk the same night? And who searched their flat?

England, 1925. When a strange young woman is found murdered on the grounds of Unsworth Castle, the duke and his family are astounded at first, but quickly become enraged when the police begin asking all sorts of impertinent questions. And when suspicions dare to fall on one of their own, it is up to Mr. Quayle, Lord Unsworth's exceedingly efficient secretary, to find the true culprit and save the House of Unsworth from scandal and ruin.

In a London slowly recovering from the ravages of World War II, two very different women join forces to launch a business venture in the heart of Mayfair - The Right Sort Marriage Bureau. Miss Iris Sparks, avuncular and unmarried, and Mrs. Gwendolyn Bainbridge, practical and widowed with a young son, are determined to achieve some independence and do some good in a rapidly changing world. But the promising start to their marriage bureau is threatened when their newest client is found murdered and the man arrested for the crime is the prospective husband they matched her with.

Like many old New England families, the Kellings live to die. Although their family vault is spacious and comfortable, it will not do for Sarah Kelling's great-uncle Frederick. In his will, he demands to be buried inside the ancient family tomb at Boston Common, which hasn't admitted a new member in more than a century. But when the Kellings crack the old vault's door, they find a recently built brick wall - and behind it lays a surprisingly fresh corpse, a skeleton with rubies in its teeth.

It is 1864 when Lizzie Martin takes up the post of companion to a wealthy widow who is also a slum landlord. Lizzie is intrigued to learn that her predecessor disappeared, supposedly having run off with an unknown man. But when the girl's body is found in the rubble of one of the recently demolished slums around the prestigious new railway station at St Pancras, Lizzie begins to wonder exactly what has been going on.

At the lush Villa Calypso on the French Riviera, a dying billionaire launches a devious plan: at midnight each day he appoints a new heir to his vast fortune. If he dies within 24 hours, that person takes it all. If not, their chance is gone forever. Yet these are no ordinary beneficiaries, these are men who crossed him, women who deceived him and distant relations intent on reclaiming the family fortune. All are determined to lend death a hand and outwit their rivals, and retired Scotland Yard detective Jasper, in pursuit of the prize.

What's a 22-year-old Irish American cop who's never been out of Massachusetts before doing at Beardsley Hall, an English country house, having lunch with King Haakon of Norway? Billy Boyle himself wonders. Back home in Southie, hed barely made detective when war was declared. Unwilling to fight and perhaps die for England, he was relieved when his mother wangled a job for him on the staff of a general married to her distant cousin.

Electra McDonnell has always known that the way she and her family earn their living is slightly outside of the law. Breaking into the homes of the rich and picking the locks on their safes may not be condoned by British law enforcement, but World War II is in full swing, Ellie's cousins, Colm and Toby, are off fighting against Hitler, and Uncle Mick's more honorable business as a locksmith can't pay the bills anymore. So when Uncle Mick receives a tip about a safe full of jewels in the empty house of a wealthy family, he and Ellie can’t resist.

Fresh from teaching at her prestigious Swiss boarding school, Miss Atalanta Ashford suddenly finds herself the most eligible young lady in society when she inherits her grandfather’s substantial fortune. But with this fortune, and an elegant new Parisian home, comes a legacy passed down from grandfather to granddaughter…sleuthing discreetly for Europe’s elite. This young lady isn’t one to back down from a challenge and Miss Ashford must depend on her sharp wit and charm to solve her first case.

Rowland Sinclair is an artist and a gentleman. In Australia's 1930s, the Sinclair name is respectable and influential, yet Rowland has a talent for scandal. He relies on the Sinclair fortune to indulge his artistic passions and friends: a poet, a painter and a brazen sculptress. Mounting tensions fuelled by the Great Depression take Australia to the brink of revolution, but Rowland Sinclair is indifferent to the politics...until a brutal murder exposes an extraordinary and treasonous conspiracy.

London, 1944. While the Luftwaffe makes its final assault on the already battered British capital, Londoners rush through the streets, seeking underground shelter in the midst of the city's blackout. When the panic subsides, other things begin to surface along with London's war-worn citizens. A severed arm is discovered by a group of children playing at an East End bomb site, and when Scotland Yard's Detective Sergeant Frederick Troy arrives at the scene, it becomes apparent that the dismembered body is not the work of a V-1 rocket.

Jessica Tregarth goes to England to visit her grandfather; an invitation that surprises and pleases her. The only link she has with her dead father's family is an antique ring he brought with him to America. This will be a chance to learn more about who she is; it will be fun.

After a routine delivery, midwife Sarah Brandt visits her patient in a rooming house and finds that another boarder, a young girl, has been killed. At the request of sergeant Frank Malloy, she searches the girl's room and discovers that the victim is from one of the most prominent families in New York - and the sister of an old friend. The powerful family, fearful of scandal, refuses to permit an investigation. But with Malloy's help, Sarah begins a dangerous quest to bring the killer to justice before death claims another victim.

Joe Tournier has a bad case of amnesia. His first memory is of stepping off a train in the 19th-century French colony of England. The only clue Joe has about his identity is a century-old postcard of a Scottish lighthouse that arrives in London the same month he does. Written in illegal English - instead of French - the postcard is signed only with the letter 'M', but Joe is certain whoever wrote it knows him far better than he currently knows himself and he’s determined to find the writer.