Hours later, the man’s cold body lies in the city mortuary, alongside the woman he couldn’t save. And his sister, unconventional nurse Gemma Tate, tracks down troubled police inspector Sebastian Bell to unravel the truth. Sebastian has enough pressure to solve the murder of an aristocratic heiress without Gemma meddling in his case. But the cryptic sentences she brings him from her brother’s notebook could be a crucial lead. If only they knew what “milky way” meant.

As a chill sets in on New York City in the winter of 1888, a jewel thief dubbed the Robin Hood of the Lower East Side has been stealing from the city's wealthiest and giving to the poor. Genevieve Stewart - a young woman whose family is part of Mrs. Astor's famed 400 but who has forged a life of her own as a reporter - decides to chase the story, but gets more than she bargained for: a murder victim sprawled in a dark alley in the dangerous Five Points neighborhood.

Edinburgh, 1911: When Maud McIntyre and her lady’s maid, Daisy, form a detective agency, they never dream their first case will take place at a glamorous house in the Scottish Highlands. But when the duchess of Duddingston, concerned that a notorious jewelry thief will target her lavish weekend party, employs Maud to go undercover as a guest to find the culprit, the agency has its first case to solve....

Eliza Thomson is back in Moreton after nearly 30 years away. Her best friend Connie is eager to introduce her to the villagers, but their excitement vanishes when they bump into the ill-tempered Mrs. Milwood. Days later, when Mrs. Milwood is found dead, the evidence confirms she was murdered...and there are no shortage of suspects. With the finger of suspicion pointing at a childhood friend, Eliza is keen to clear her name. But an inspector from New Scotland Yard has other ideas. He won't have her interfering with the investigation.

England 1921. Lady Elizabeth Gaskins is throwing a big party to celebrate her birthday. But when an odious guest gets killed and steals her thunder, her father, the Earl of Buxley, becomes a suspect. After all, he came to blows with the dead man in front of several witnesses. Determined to find out who murdered his childhood friend, Lord Buxley summons a detective from Scotland Yard. Not to be outdone, Lady Bess and her spunky cohorts, the oldest Dowager Countess and great aunts, embark on a hunt for the killer.

Penelope “Pen” Banks has a knack for puzzling things out and the uncanny ability to remember everything she sees. Two talents that have helped her make ends meet, playing cards in clubs and speakeasies. Now, they might just help her discover the true cause of death for a dear old family friend.

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…

June 1910. Fighting her corner in a man’s world, Dr. Margaret Demeray works as a pathologist in a London hospital for the poor. Suppressing her worry that she’s breaching confidentiality, Margaret gives a stranger called Fox information about a dead down-and-out, in the hope he’ll use it to raise awareness of bad working conditions. But when a second man appears to die the same way, Margaret starts to wonder why the enigmatic Fox keeps turning up to ask ever more complex questions. She decides to work alone, uncertain of his motives and wary of her attraction to him.

Cherringham - a quiet town in the Cotswolds. Nothing ever happens there, or so it seems - until one morning a woman's body is found in the river. A terrible accident, according to the police. But is this true? Sarah believes there must be more to it. In Jack, a former NYPD homicide detective, she finds a partner who is willing to start investigating with her. They soon find out that things are not as clear as the police want them to be ... This first - of many cases brings Sarah and Jack together in an unlikely partnership.

Newport, Rhode Island, August 1895: She may be a less well-heeled relation, but as second cousin to millionaire patriarch Cornelius Vanderbilt, 21-year-old Emma Cross is on the guest list for a grand ball at the Breakers, the Vanderbilts' summer home. She also has a job to do - report on the event for the society page of the Newport Observer.