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.

Celebration is in the air at Wrexford and Charlotte's country estate as they host the nuptials of their friends, Christopher Sheffield and Lady Cordelia Mansfield. The festivities are interrupted when the local authorities arrive with news that a murdered man has been discovered at the bridge over King's Crossing. Lady Cordelia is horrified when the victim is identified as Jasper Milton, her childhood friend and a brilliant engineer who is rumored to have discovered a revolutionary technological innovation in bridge design.

As the hurricane batters the house and the waters rise, Callum is found hanging from an ancient oak, murdered in the same way as the notorious villain in his most popular book. Cut off from the outside world, the guests soon realize that the murderer might strike again, and everyone at the plantation could either be the next victim or the killer.

Northumberland, 1809: A beautiful young heiress disappears from her locked bedchamber at Linn Hagh. The local constables are baffled and the townsfolk cry "witchcraft". The heiress' uncle summons help from Detective Lavender and his assistant, Constable Woods, who face one of their most challenging cases.

When the body of a young man is found stuffed into the tomb of a medieval knight, Parish Constable Daniel Haze is tasked with investigating his first solo murder case. Suspicion instantly falls on the only stranger to arrive in the village of Birch Hill just before the crime took place, but the American captain proves to be an unexpected asset. A former soldier and a skilled surgeon, Jason Redmond is not only willing to assist Haze with the investigation but will risk his own safety to apprehend the killer.

When mystery writer Marius Quin and his sleuthing partner Lady Bella Montague are hired by a secretive stranger to find a missing civil servant, they immediately set to work. Ernest Castleton was taken at gunpoint days earlier, but with the help of his distraught fiancée, Marius and Bella uncover a vital clue. Ernest hid a cryptic letter in the British Museum, and it sends the intrepid duo on a trail that stretches from the center of London all the way to the English coast.

Tabitha, Lady Chesterton, the Countess of Pembroke, is newly widowed at only 22 years of age. With no son to inherit the title, it falls to a dashing, distant cousin of her husband's, Jeremy Chesterton, known as Wolf. It quickly becomes apparent that Wolf had consorted with some of London's most dangerous citizens before inheriting the title. Can he leave this world behind, or will shadowy figures from his past follow him into his new aristocratic life in Mayfair? And can Tabitha avoid being caught up in Wolf's dubious activities?

In the winter of 1906, Lady Emily and husband Colin are invited to the opulent home of Baroness Ursula von Duchtel in the Bavarian alps. Outside is a mountainous winter wonderland with a view of Mad King Ludwig’s fairy tale castle. Inside, the villa hosts a magnificent but eclectic art collection—as well as an equally eclectic collection of fellow guests, among them a musician, an art dealer, a coquette from the demi-monde, and Kaspar, the Baroness’ boorish son-in-law, whom, it begins to appear, someone wants dead.

When the family receives a second photograph of their daughter, who is quite obviously dead, their simple inquiry becomes a murder investigation. But this is no routine investigation as another photograph is received, and another body is found. As more bodies turn up, and with no known motive, Brodie and Mikaela must confront the fact that the murderer is brilliant, disturbingly talented, and quite possibly insane. What drives this cold-blooded killer to capture the last moments of their victims with such haunting clarity?

She's an unconventional lady who has traveled the world, practices the art of self-defense most excellently, and has an interesting tattoo in—ahem—a very unusual place. He's a former member of the Metropolitan Police, now a private investigator, who grew up on the poverty-ridden streets of Edinburgh and has worked the dangerous back alleys of London's notorious East End. A vicious murder brings them together in a race against time that takes them from the sordid back streets of London into the elite private clubs of the powerful and rich.