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.

June 1933. Independent, young Kitty Underhay has been left in charge of her family’s hotel, The Dolphin, on the tranquil English coast. But when several rooms are broken into and searched, including Kitty’s own, she quickly realizes that something out of the ordinary is afoot at the hotel. Soon, rumors are flying in the cozy town that someone is on the hunt for a stolen ruby. A ruby that Kitty’s mother may well have possessed when she herself went missing during the Great War.

Frances Wynn, the American-born Countess of Harleigh, enjoys more freedom as a widow than she did as a wife. After an obligatory year spent mourning her philandering husband, Reggie, she puts aside her drab black gowns, leaving the countryside and her money-grubbing in-laws behind. With her young daughter in tow, Frances rents a home in Belgravia and prepares to welcome her sister, Lily, arriving from New York - for her first London season.

Twenty-six-year-old Beatrice Hyde-Clare is far too shy to investigate the suspicious death of a fellow guest in the Lake District. A spinster who lives on the sufferance of her relatives, she would certainly not presume to search the rooms of her host's son and his friend looking for evidence. Reared in the twin virtues of deference and docility, she would absolutely never think to question the imperious Duke of Kesgrave about anything, let alone how he chose to represent the incident to the local constable. And yet that's exactly what she does.

As the city prepares to celebrate Queen Victoria's golden jubilee, Veronica Speedwell is marking a milestone of her own. After burying her spinster aunt, the orphaned Veronica is free to resume her world travels in pursuit of scientific inquiry - and the occasional romantic dalliance. As familiar with hunting butterflies as she is fending off admirers, Veronica wields her butterfly net and a hatpin with equal aplomb, and with her last connection to England gone, she intends to embark upon the journey of a lifetime.

England, 1920. Eleanor Swift has spent the last few years travelling the world: taking tea in China, tasting alligators in Peru, escaping bandits in Persia and she has just arrived in England after a chaotic 45-day flight from South Africa. Chipstone is about the sleepiest town you could have the misfortune to meet. But then, from the edge of a quarry, through the driving rain, Eleanor is shocked to see a man shot and killed in the distance. Before she can climb down to the spot, the villain is gone and the body has vanished.

England, 1865: Newspaper columnist Lady Katherine Bascomb finds herself the subject of speculation when her latest article leads to an arrest in the murders plaguing London. The English believe women ought not to write about such vulgar things as crime, and a particularly attractive detective inspector is incensed that she's interfered with his investigation. To escape her sudden notoriety, Katherine heads to the country - only to witness a murder upon her arrival.

Librarian Sylvia Ashe knows nothing about her past, having grown up without a father and a mother who refused to discuss him. When she stumbles upon a diary that suggests she's descended from magicians, she's skeptical. After all, magicians are special, and she's just an ordinary woman who loves books. She seeks answers from a member of the most prominent family of magicians, but she quickly learns that finding the truth won't be easy, especially when he turns out to be as artless as her, and more compelling and dangerous than books.

Lady Emily Hardcastle is an eccentric widow with a secret past. Florence Armstrong, her maid and confidante, is an expert in martial arts. The year is 1908 and they've just moved from London to the country, hoping for a quiet life. But it is not long before Lady Hardcastle is forced out of her self-imposed retirement. There's a dead body in the woods, and the police are on the wrong scent. Lady Hardcastle makes some enquiries of her own, and it seems she knows a surprising amount about crime investigation...

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.

December 1899. After the death of her beloved grandmother, Cleopatra Fox moves into the luxury hotel owned by her estranged uncle in the hopes of putting hardship and loneliness behind her. But the poisoning of a guest on Christmas eve throws her new life, and the hotel, into chaos. Cleo quickly realizes no one can be trusted, not Scotland Yard and especially not the hotel’s charming assistant manager.

Mrs. Laetitia Rodd, aged 52, is the widow of an archdeacon who makes her living as a highly discreet private investigator. Her brother, Frederick Tyson, is a criminal barrister living in nearby Highgate with his wife and 10 children. Frederick finds the cases, and Laetitia solves them using her arch intelligence and her immaculate cover as an unsuspecting widow. When a case arises involving the son of the highly connected Sir James Calderstone, Laetitia sets off for Lincolnshire undercover as the family's new governess.

In a windswept British seaside town, single mum Alice Lake finds a man sitting on the beach outside her house. He has no name and no idea how he got there. Against her better judgment, she invites him inside. Meanwhile, in a suburb of London, 21-year-old Lily Monrose has been married for only three weeks. When her husband fails to come home from work one night, she is left alone in a place where she knows no one and with the police telling her that her husband never existed.

Thirty years ago, Wilde was found as a boy living feral in the woods, with no memory of his past. Now an adult, he still doesn't know where he comes from, and another child has gone missing. No one seems to take Naomi Pine's disappearance seriously, not even her father - with one exception. Hester Crimstein, a television criminal attorney, knows through her grandson that Naomi was relentlessly bullied at school. Hester asks Wilde - with whom she shares a tragic connection - to use his unique skills to help find Naomi.

When a murder is committed, a lady's companion finds herself in the role of amateur sleuth...1789, London: When Emily Fanshawe, Marchioness of Polbrook, is found strangled in her bedchamber, suspicion immediately falls on those residing in the grand house in Hanover Square. Emily's husband - Randal Fanshawe, Lord Polbrook - fled in the night and is chief suspect - much to the dismay of his family. Ottilia Draycott is brought in as the new lady's companion to Sybilla, Dowager Marchioness, and soon finds herself assisting younger son Lord Francis Fanshawe in his investigations.

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.

Rosalind Thorne may not have a grand fortune of her own, but she possesses virtues almost as prized by the haut ton: discretion, and a web of connections that enable her to discover just about anything about anyone. Known as a "most useful woman," Rosalind helps society ladies in need--for a modest fee, of course--and her client roster is steadily increasing.

Elizabeth of York is the oldest daughter of King Edward IV. Flame-haired, beautiful, and sweet-natured, she is adored by her family; yet her life is suddenly disrupted when her beloved father dies in the prime of life. Her uncle, the notorious Richard III, takes advantage of King Edward’s death to grab the throne and imprison Elizabeth's two younger brothers, the rightful royal heirs. Forever afterward known as the princes in the tower, the boys are never seen again.

American heiress Sophia Wilson leaves Old New York for a Season in London. Her goal: to marry into the English aristocracy and help improve her family's social standing in America. Sophia knows her marriage will be a business transaction - her father will provide a generous financial settlement in exchange for a title - but secretly, what she desires most of all is to marry for love.

Katherine Vareck is in for the shock of her life when she learns upon her husband Meri’s death that, before the accident, he had married two other women. And you know how the saying goes: Hell hath no fury like a woman who married a man who married two other women. Or something like that.

Young, widowed, and penniless, Lily Andrews, the Countess of Merrill, has strong opinions on marriage. When she spots a certain engagement announcement in The Times, she decides to take action. She will not allow another hapless girl to fall prey to a man - particularly the scoundrel who broke her heart five years ago. Anonymously she writes and distributes a pamphlet entitled "Secrets of a Wedding Night," knowing it will find its way into his intended's innocent hands.

Alexander Hallworth, Marquess of Pembrooke, will not rest until he gets vengeance on the man who destroyed his family. Just one more piece needs to fall into place for Alex to succeed: he needs to convince the man's fiancée, the tragically beautiful Lady Claire Cavensham, to marry him instead. Lady Claire's "curse" has left her one step away from social ruin: her past three engagements have gone awry, and now her fourth one is headed the same way.

Desperate times call for daring measures as Honor Cabot, the eldest stepdaughter of the wealthy Earl of Beckington, awaits her family's ruin. Upon the earl's death she and her sisters stand to lose the luxury of their grand home - and their place on the pedestal of society - to their stepbrother and his social-climbing fiancée. Forced to act quickly, Honor makes a devil's bargain with the only rogue in London who can seduce her stepbrother's fiancée out of the Cabots' lives for good.

He is the last duke standing...the sole remaining bachelor of the three self-proclaimed Decadent Dukes. Yet, Davina MacCallum's reasons for searching out the handsome Duke of Brentworth have nothing to do with marriage. Scottish lands were unfairly confiscated from her family by the Crown and given to his. A reasonable man with vast holdings can surely part with one trivial estate, especially when Davina intends to put it to good use. Brentworth, however, is as difficult to persuade as he is to resist.

Frances Wynn, the American-born Countess of Harleigh, enjoys more freedom as a widow than she did as a wife. After an obligatory year spent mourning her philandering husband, Reggie, she puts aside her drab black gowns, leaving the countryside and her money-grubbing in-laws behind. With her young daughter in tow, Frances rents a home in Belgravia and prepares to welcome her sister, Lily, arriving from New York - for her first London season.

Clara may be the woman Adam wants, but there's one problem: She's far more interested in publishing her women's journal than getting married - especially to a man said to be dead-set on vengeance. Though with her nose for a story, Clara wonders if his desire for justice is sincere - along with his incredibly unnerving intention to be her husband. If her weak-kneed response to his kiss is any indication, falling for Adam clearly comes with a cost. But who knew courting danger could be such exhilarating fun?

London, 1851, and the Great Exhibition is on. A soaring success despite months of dour predictions, it is the event of the year, on front pages and wagging tongues the world over—and Miss Kara Levett is thrilled to be in the middle of it. The daughter of a baron and an exhibitor herself, she happily demonstrates her elaborate automatons and case clocks to the crowds. But her situation grows perilous when a man is murdered in the Crystal Palace and she becomes the prime suspect.

Life has taught Lucas Kendrick, duke of Harndon, that a heart is a decided liability. Betrayed by his elder brother, rejected by his fiancée, banished by his father, and shunned by his mother, Luke fled to Paris, where he became the most sought-after bachelor in fashionable society. Ten years later fate has brought him back home to England as head of the family who rejected him. Unwilling as he is to be involved with them, he must assume responsibility for his younger siblings, the family estate he once loved - and the succession.

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.

Heartbroken by the loss of her brother, Miss Leonora Craven vows to uncover the truth about his "accident", which seems to have been anything but. Jonathan Craven was involved with the Lords of Anarchy, a notorious driving club, and Leonora can't help but suspect foul play. But the only way she can infiltrate their reckless inner circle is to enlist the help of Jonny's closest ally, Lord Frederick Lisle. If only he didn't also happen to be the man who broke Leonora's heart....