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.

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.

At the end of her first unsuccessful season out in society, Lady Georgiana has all but given up on attracting a suitable man - until she receives an invitation to a masked Halloween ball at Broxley Manor. Georgie is uncertain why she was invited, until she learns that the royal family intends to marry her off to a foreign prince, one reputed to be mad.

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...

England, 1925. After years shut away from the world, former detective Lord Edgington of Cranley Hall plans a grand ball to celebrate his seventy-fifth birthday. But when someone starts bumping off members of his scheming family, the old man enlists his teenage grandson to help find the killer, before one of them is next.

Miss Busby helped Major Heathcliff Lennox solve a series of murders at Bloxford in the Cotswolds. Now, she finds herself drawn into a new murder, but this time, it's just her, and she must rely on her sharp mind and sharper wits to catch a Cotswolds killer, along with a handsome police inspector and a reporter who's keen to make her mark.

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.

Spring, 1905: Free-spirited like the Thoroughbreds she rides across the Kentucky countryside, Stella takes adventure by the reins when she's asked to attend a mysterious wedding in rural England. But once she arrives at the lush Morrington Hall estate, her cold and ambitious father confesses that he won't only give away his best racehorses as gifts - he has also arranged to give away his daughter as bride to the Earl of Atherly's financially strapped son. Stella refuses to be sold off like a prized pony. Yet despite a rough start, there's something intriguing about her groom-to-be.

Spring, 1918. The Great War is at a crucial stage, the Germans are making one last push into France, and the Allies are struggling to hold them back. Battle lines are shifting, and men, and their machines, are being sent up and down the front to shore up defenses. Major Heathcliff Lennox, and his batman Greggs, are told to report to their new HQ. They set off on a sunlit day to fly the distance, but the enemy is never far away, and disaster strikes. They're sent crashing to the ground behind enemy lines, where life, death, and love await.

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.

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.

Londoner Madeleine Grant is studying at the Sorbonne in Paris when she marries charismatic French journalist Giles Martin. As they raise their son, Olivier, they hold on to a tenuous promise for the future. Until the thunder of war sets off alarms in France. Staying behind to join the resistance, Giles sends Madeleine and Olivier to the relative safety of England, where Madeleine secures a job teaching French at a secondary school. Yet nowhere is safe. After a devastating twist of fate resulting in the loss of her son, Madeleine accepts a request from the ministry to aid in the war effort.

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....

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.

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…

The year is 1838, and seventeen-year-old Julia Elliston's position has never been more fragile. Orphaned and unmarried in a time when women are legal property of their fathers, husbands, and guardians, she finds herself at the mercy of an anonymous guardian who plans to establish her as a servant in far-off Scotland. With two months to devise a better plan, Julia's first choice - to marry her childhood sweetheart - is denied. Then, a titled dowager offers to introduce Julia into society, opening a realm of possibilities.

Summer 1924: On the eve of a glittering society party, by the lake of a grand English country house, a young poet takes his life. The only witnesses, sisters Hannah and Emmeline Hartford, will never speak to each other again. Winter 1999: Grace Bradley, 98, one-time housemaid of Riverton Manor, is visited by a young director making a film about the poet's suicide. Ghosts awaken and memories, long consigned to the dark reaches of Grace's mind, begin to sneak back through the cracks.

In Victorian England, orphan Mary Quinn lives on the edge. Sentenced as a thief at the age of 12, she’s rescued from the gallows by a woman posing as a prison warden. In her new home, Miss Scrimshaw’s Academy for Girls, Mary acquires a singular education, fine manners, and a surprising opportunity. The school is a cover for the Agency — an elite, top secret corps of female investigators with a reputation for results — and at 17, Mary’s about to join their ranks.

Pretty and popular, Miss Clare Westmore knows exactly what (or rather, who) she wants: the next Duke of Harrington. But when she twists her ankle on the eve of the Season's most touted event, Clare is left standing in the wallflower line watching her best friend dance away with her duke.

Sweet, shy Tabitha Crum, the neglected only child of two parents straight out of a Roald Dahl book, doesn't have a friend in the world - except for her pet mouse, Pemberley, whom she loves dearly. But on the day she receives one of six invitations to the country estate of wealthy Countess Camilla DeMoss, her life changes forever.

Governess Juliana Ashbourne has dreams reaching far beyond the confines of her current position, hoping to someday establish her own school for girls. When she inherits a fortune from her late grandfather, she is shocked to learn that “someday” may soon be within reach. However, there is one condition: she must spend a month at the estate of Havenfield - with the very family who disowned her mother. Intent on securing the money she needs to start her school, Juliana accepts the invitation, vowing to guard her heart against those who shunned her all her life.

Into Keldale's pastoral web of old houses and older secrets comes Scotland Yard Inspector Thomas Lynley, the eighth earl of Asherton. Along with the redoubtable Detective Sergeant Barbara Havers, Lynley has been sent to solve a savage murder that has stunned the peaceful countryside. For fat, unlovely Roberta Teys has been found in her best dress, an ax in her lap, seated in the old stone barn beside her father's headless corpse. Her first and last words were "I did it. And I'm not sorry".

Miss Amelia Hathaway, a beautiful and strong-willed spinster, has looked after her unruly younger siblings ever since the death of her parents. Romance is the last thing on her mind. But when reckless brother inherits a title, the Hathaways are flung into the unfamiliar world of the English peerage. And Amelia, who’s always refused to lean on anyone’s shoulder, finds herself turning to a sexy, dark-haired stranger for help.

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.

Olivia Moreland prides herself on discrediting charlatans, particularly the false mediums that flock to London. But when Lord Stephen St. Leger requests her help in investigating an alleged psychic's claims, she can't deny the ominous feeling she has within the walls of his ancient estate - or the intimately familiar connection she has with Stephen himself. The last time he'd called Blackhope Hall home, Stephen had watched as his elder brother claimed both the family title and the woman he loved.

Jack Vines has the Victorian home of his dreams - or so it seems until he discovers an intriguing beauty lurking in the shadows. Stunned, he finds they share the house but live a century apart. The realization leads him to questions so disturbing it changes both their lives forever. She is a prisoner of the past, shrouded in a world of dark mysteries. He holds the keys that will protect their future. But first, he must solve the mystery concealed for nearly 100 years.

Eight months since losing her mother in the Spanish flu outbreak of 1919, 21-year-old Lillian Carter's life has completely fallen apart. For the past six years, under the moniker Angelica, Lillian was one of the most sought-after artists' models in New York City, with statues based on her figure gracing landmarks from the Plaza Hotel to the Brooklyn Bridge

Raised in scandal, Lord Michael de Grey is convinced that love is a losing gamble - and seduction the only game worth playing. But when duty threatens to trump everything he desires, the only way out is marriage to a woman of his brother’s choosing. Elizabeth Chudderley is delightful, delicious - and distressingly attractive. With such a captivating opponent, Michael isn’t quite sure who is winning the game. How can such passionate players negotiate a marriage of necessity - when their hearts have needs of their own?

Following a humiliating fourth season in London, Lady Elizabeth Fraser is on her way back to her ancestral country estate when her train careens off the rails and bursts into flames. Though she is injured, she manages to drag herself and her unconscious mother out of the wreckage, and amid the chaos that ensues, a brilliant young railway surgeon saves her mother's life. Elizabeth feels an immediate connection with Paul Wilcox - though society would never deem a medical man eligible for the daughter of an earl.

A week's holiday in a luxurious hotel is just what Scotland Yard's Superintendent Duncan Kincaid needs. But his vacation ends dramatically with the discovery of a dead body in the whirlpool bath. Despite a suspicious lack of cooperation from the local constabulary, Kincaid's keen sense of duty won't allow him to ignore the heinous crime, impelling him to send for his enthusiastic young assistant, Sergeant Gemma James. But the stakes are raised significantly when a second murder occurs....