Sir Francis Walsingham, spymaster to the Tudor Queen Elizabeth has trained Kit Scarlett since she was a girl. Aware that she is able to infiltrate places that his male agents cannot, he sees her as an invaluable member of his team. When Walsingham discovers that a rebel alliance is planning to overthrow Queen Elizabeth and put Mary, Queen of Scots on the English throne, he summons Kit immediately. Together with loyal Scottish agent Iomhar Blackwood, Kit is tasked with finding out the full details of the treasonous plot.

For all fifteen years of her life, Pauline de Pamiers has witnessed an attack on her family, friends, and faith. It's the early thirteenth century and the Pope and King of France are conducting a Crusade against the Cathars; the only crusade on European soil and against another Christian sect. As a member of this sect in France that sits outside the dominant Roman Church, Pauline is an outsider: young, but independent and bold.

Gemma Tate has a new job and a new address. She is putting her past—her memories of nursing in the Crimean war—behind her. But when Jacob Harrow, a journalist with ties to Crimea, is found brutally killed, Gemma is pulled into the investigation. Police inspector Sebastian Bell works alone. But when all signs point towards a dark secret Harrow brought back from the war, he realizes he needs Gemma’s help to untangle the mystery. But raking up the past has devastating consequences when Gemma’s friend, another nurse from Crimea, is found murdered in her boarding house.

1715. Jonas Flynt, ex-soldier and reluctant member of the Company of Rogues, a shady intelligence group run by ruthless spymaster Nathaniel Charters, is ordered to recover a missing document. Its contents could prove devastating in the wrong hands. On her deathbed, the late Queen Anne may have promised the nation to her half-brother James, the Old Pretender, rather than the new king, George I. But the will has been lost. It may decide the fate of the nation.

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.

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.

Salisbury, 1226. A young pregnant woman is found tangled in reeds in the river Avon, her identity a mystery. Grieving widow Ela Longespée is determined to succeed her husband as sheriff of Salisbury, and quickly takes charge of the investigation. She soon finds herself in the thick of a neighborhood scandal and a struggle to maintain her authority. With multiple suspects, can she identify the true killer?

A murdered opera singer. A duke drenched in her blood. For Bow Street Officer Hugh Marsden, the brutal killing is a straightforward case. Ever since his exile from polite society, the chance to arrest a high and mighty peer of the realm has never presented itself. Hugh won't snub the opportunity now. But Audrey Sinclair, the Duchess of Fournier, is certain her husband is wrongly accused, and she's determined to prove it to the arrogant Bow Street officer, even if she must employ her most peculiar ability—or perhaps curse—to guide her investigation. After all, a duchess can do as she pleases.

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.

England, 1553. Richard Fitzwarren is a man determined to forge his own path. Once a man of importance, he was driven from his home with his half brother to scratch out a living as a mercenary. With little prospects, Richard must take whatever work comes his way, even when it leads to being thrown into the middle of a plot for the throne. But when his impulsive sibling draws attention from his wrathful family, the pair barely escapes with their lives.