Forced to run for her life, Kit FitzGilbert finds herself in the very place she swore never to return to - a London ballroom. There she encounters Graham, Lord Wharton, who believes Kit holds the key to a mystery he's trying to solve. As much as she wishes that she could tell him everything, she can't reveal the truth without endangering those she loves.

Lady Miranda Hawthorne acts every inch the lady, but inside she longs to be bold and carefree. Entering her fourth Season and approaching spinsterhood in the eyes of society, she pours her innermost feelings out not in a diary but in letters to her brother's old school friend, a duke - with no intention of ever sending these private thoughts to a man she's heard stories about but never met.

Cassandra Hale grew up knowing little about her parentage, and she had made peace with the fact that she never would. But her world shifts when a shocking deathbed confession reveals a two-year-old letter from Mr. Clark, the master of Briarton Park, with hints to her family’s identity. Stung by betrayal, Cassandra travels to the village of Anston only to learn Mr. Clark has since passed away.

Despite the fact that her daughter is not cooperating, Caroline, Duchess of Riverton, is determined to ensure every one of her children marries someone they love as much as she loved their late father. William, the widowered Earl of Blackstone, is delighted to have his days of escorting daughters approaching an end.

Left with an estate on the brink of bankruptcy after their father's death, Lady Marigold Fairfax and her brother open a private investigation firm marketed to the elite . . . to spy on the elite. Dubbed The Imposters, Ltd., their anonymous group soon becomes the go-to for the crème of society when they want answers delivered surreptitiously. But the many secrets Marigold learns about her peers pale in comparison to her shock when she and her brother are hired to investigate her best friend's father as a potential traitor.

At the age of nineteen, Lady Dorothea Rowlandson was practically on the shelf. Had she not suffered her father, the earl’s, untimely death weeks before last year’s season, she would surely by now be a married lady—the established wife of an illustrious peer. With such a regrettable delay, time was ever more of the essence if she wished to secure her own future and that of her sisters.

Patrick O'Neill survived a hardscrabble youth to become a lawyer for the downtrodden Irish immigrants in his community. He's proud of his work, even though he struggles to afford his ramshackle law office. All that changes when he accepts a case that is sure to emphasize the Blackstones' legacy of greed and corruption by resurrecting a 30-year-old mystery. Little does Patrick suspect that the Blackstones will launch their most sympathetic family member to derail him. 

With their sharp engineering minds, Laura Stiles and her two sisters have been able to deal with their mother’s unfortunate choice in husband until they discovered his plans to marry each of them off to his lecherous friends. Now they must run away - far and fast - to find better matches to legally claim their portion of their father's lumber dynasty and seize control from their stepfather.   

Lady Charlotte Darrington’s path in life is clearly laid out before her: she will select a suitable husband, marry, and one day inherit her father’s Scottish dukedom. But a growing restlessness has her desperate for a bit of freedom before her all-too-certain future closes in. When the opportunity to travel to America arises, Charlotte leaps at the chance and soon finds herself across the Atlantic in Pittsburgh, Pennsylvania. Her American hosts and their friends couldn’t be more welcoming—all except one. The insufferable Dr. Galloway captures her eye—and her ire.

Louisa Cox is tired of fortune hunters pursuing her dowry. So when Lady Kellen offers to help her find an eligible suitor, Louisa accepts and makes a list of what she wants in a husband. The man selected is barrister Paul Sheldon. He has one thing in his favor: he is unaware of her fortune. What Louisa did not anticipate was his curious behavior—or being so attracted to him. When Paul catches wind of the matchmaking organization his mother and her friends are establishing, he pities the fellow who will be caught in their scheme—until he realizes he is to be their first victim.

Cornwall, England, 1811 - Blamed for her husband’s death, Cordelia Greythorne fled Cornwall and accepted a governess position to begin a new life. Years later, her employer’s unexpected death and his last request for her to watch over his five children force her to reevaluate. She can’t abandon the children now that they’ve lost both parents, but their new guardian lives at the timeworn Penwythe Hall...back on the Cornish coast she’s tried desperately to forget.

Haunted by the horrors of war, ex-cavalry officer Matthew Hanger leads a band of mercenaries known as Hanger's Horsemen who have become legends in 1890s Texas. They defend the innocent and obtain justice for the oppressed. But when a rustler's bullet leaves one of them at death's door, they're the ones in need of saving. Dr. Josephine Burkett is used to men taking one look at her skirts and discounting her medical skills. What she's not used to is having a man change his mind in a heartbeat and offer to assist her in surgery. 

Julia Cummings has long been acquainted with loss - her mother, her brother, her sister, her friend, all gone too soon. But the loss that pushed her grief to the limit as a young girl was that of her best friend, Lucas Jonquil, who abandoned her without looking back. Now, eight years later, Lucas has returned to Lampton Park, and Julia has steeled herself - she will never forgive the man who broke her heart.

Lady Sophronia Bremerton is a far cry from the typical debutante, but she’s the toast of London’s upper class for one simple reason: she’s a society columnist for the London Illustrated News, and the gentry loves seeing their exploits printed in the gossip pages. But Sophie has bigger plans - she aspires to be an investigative reporter. When a stuffy ballroom during yet another Season proves to be nothing more than the usual rumor mill, Sophie seeks respite in the library, alongside four other young women who, for their own reasons, are also looking for escape. 

1906: Lady Elizabeth “Libby” Sinclair, with her love of microscopes and nature, isn’t favored in society. She flees to the beautiful Isles of Scilly for the summer and stumbles onto the dangerous secrets left behind by her holiday cottage’s former occupant, also named Elizabeth, who mysteriously vanished. Oliver Tremayne - gentleman and clergyman - is determined to discover what happened to his sister, with the help of the girl now living in what should have been Beth’s summer cottage...especially when he realizes it’s the curious young lady he met briefly two years ago.