Europe's elite have gathered at the glittering Congress of Vienna--princes, ambassadors, the Russian tsar--all negotiating the fate of the continent by day and pursuing pleasure by night. Until Princess Tatiana, the most beautiful and talked about woman in Vienna, is found murdered during an ill-timed rendezvous with three of her most powerful conquests… Suzanne Rannoch has tried to ignore rumors that her new husband, Malcolm, has also been tempted by Tatiana.

It's 1811, and the threat of revolution haunts the upper classes of King George III's England. Then a beautiful young woman is found savagely murdered on the altar steps of an ancient church near Westminster Abbey. A dueling pistol found at the scene and the damning testimony of a witness both point to one man - Sebastian St. Cyr, Viscount Devlin, a brilliant young nobleman shattered by his experience in the Napoleonic Wars.

Society believes the worst of Justin Alastair, the notorious Duke of Avon. When he encounters a young boy, Léon, who is running from his abusive brother, Avon employs the boy as his page, parading him around parties and other society events in full view of his bitter rival, the Comte de Saint-Vire. But the truth is soon uncovered: Léon is a girl named Léonie and is actually the legitimate child of the Comte and his wife. While Avon is intent on his plan to reveal the Comte’s duplicity and ruin him, he is charmed by Léonie’s kindness, falls in love, and becomes a changed man.

Mourning the death of his father and gravely injured at the hands of the English, Jamie Fraser finds himself running with a band of mercenaries in the French countryside, where he reconnects with his old friend, Ian Murray. Both are nursing wounds, both have good reason to stay out of Scotland, and both are still virgins despite several opportunities to remedy that deplorable situation with ladies of easy virtue.

Following the death of her husband, Lady Darby has taken refuge at her sister's estate, finding solace in her passion for painting. But when one of the house guests is murdered, her brother-in-law asks her to aid the insufferable Sebastian Gage - a fellow guest with some experience as an inquiry agent. While Gage is clearly more competent than she first assumed, Kiera isn't about to let her guard down, as accusations and rumors swirl.

The Earl of Wrexford possesses a brilliant scientific mind, but boredom and pride lead him to reckless behavior. He does not suffer fools gladly. So when pompous, pious Reverend Josiah Holworthy publicly condemns him for debauchery, Wrexford unsheathes his rapier-sharp wit and strikes back. As their war of words escalates, London's most popular satirical cartoonist, A. J. Quill, skewers them both.

Edinburgh, 1847. Will Raven is a medical student, apprenticing for the brilliant and renowned Dr Simpson. Sarah Fisher is Simpson’s housemaid and has all of Raven’s intelligence, but none of his privileges. As bodies begin to appear across the Old Town, Raven and Sarah find themselves propelled headlong into the darkest shadows of Edinburgh’s underworld. And if either of them are to make it out alive, they will have to work together to find out who’s responsible for the gruesome deaths.

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....

Lord Lysander Blackstone, the stern Duke of Montcroix, has only one interest: increasing his considerable fortune. After a series of betrayals, he keeps his emotions buried deep. Money, after all, can't break a man's heart—or make promises it can’t keep. But when his reputation for being heartless jeopardizes a new business deal, he finds himself seeking a most unusual—and alluring—solution.

The daughter of a baronet and minor heiress, Rosalind Thorne was nearly ruined after her father abandoned the family. To survive in the only world she knew, she began to manage the affairs of some of London society's most influential women, who rely on her wit and discretion. So when artistocratic wastrel Jasper Aimesworth is found dead in London's most exclusive ballroom, Almack's, Rosalind must use her skills and connections to uncover the killer.

For Emily, accepting the proposal of Philip, the viscount Ashton, was an easy way to escape her overbearing mother, who was set on a grand society match. So when Emily's dashing husband died on safari soon after their wedding, she felt little grief. After all, she barely knew him. Now, nearly two years later, she discovers that Philip was a far different man from the one she had married so cavalierly.

Victorian London was notorious for its pickpockets. But in the country houses of the elite, gentleman burglars, art thieves and con men preyed on the rich and titled. Wealthy victims—with their pride and reputation at stake—would never go to the police. What they needed was a society insider, one of their own, a person of discretion and finely tuned powers of observation.

Hidden away in rural Devonshire, Phyllida Satterthwaite has always been considered more odd than beautiful. But in London, her oddity has made her a sensation. Far worse, it’s caught the eye of the sinister Duke of Moreland - a notorious art collector obsessed with acquiring one-of-a-kind treasures. To escape the duke’s clutches, she’s going to need a little help. Captain Arthur Heywood’s days of heroism are long past. Grievously injured in the Peninsular War, he can no longer walk unaided, let alone shoot a pistol. What use can he possibly be to a damsel in distress?

Cavalry captain Gabriel Lacey returns to Regency London from the Napoleonic wars, burned out, fighting melancholia, his career ended. His interest is piqued when he learns of a missing girl, possibly kidnapped by a prominent member of Parliament. Lacey's search for the girl leads to the discovery of murder, corruption, and dealings with a leader of the underworld.

Annabelle and Bayard Van Duyvil live a charmed life in New York: He's the scion of an old Knickerbocker family, she grew up in a Tudor house in England, they had a fairy-tale romance in London, and he's recreated her family home on the banks of the Hudson. Yes, there are rumors that she's having an affair with the architect, but rumors are rumors. But then Bayard is found dead with a knife in his chest on the night of their Twelfth Night Ball; Annabelle goes missing, presumed drowned; and the papers go mad.