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.

Newly returned from finishing school, Lady Juliette Thorndike is ready to debut in London society. Due to her years away, she hasn't spent much time with her parents, and sees them only as the flighty, dilettante couple the other nobles love. But when they disappear, she discovers she never really knew them at all. They've been living double lives as government spies-and they're only the latest in a long history of espionage that is the family's legacy.

Rowley Knight, Duke of Knighton, is too busy being a duke to bother with such nonsense as love. With three heirs, he is in no hurry whatsoever to succumb to the lures of the leg-shackles. He is content managing his siblings and estates, and avoiding society whenever possible. If he can only find someone to manage his young sister, life can go back to its proper order.

At the end of his Grand Tour, somewhere between Athens and Constantinople, Christian Selwyn, the young Earl of Hazelmere, vanished—seemingly without trace. Time passes. In London, his uncle and cousin move into his home, while his unofficial fiancée, Sophia, is left desolate and in limbo.

When their father's death leaves them impoverished, Sarah Summers and her genteel sisters fear they will be forced to sell the house and separate to earn livelihoods as governesses or companions. Determined to stay together, Sarah convinces them to open their seaside home to guests to make ends meet and provide for their ailing mother. Instead of the elderly invalids they expect to receive, however, they find themselves hosting eligible gentlemen. Sarah is soon torn between a growing attraction to a mysterious Scottish widower and duty to her family.

Miss Amelia Stalwood may live in London at her absent guardian's townhouse, but she's never actually met any nobility; instead of aristocrats, her closest friends are servants. Quite by happenstance, she's introduced to the Hawthorne family and their close family friend, Anthony, the reformed Marquis of Raebourne. They welcome her into their world, but just as she's beginning to gain some confidence and even suspect that she may have caught Anthony's eye, she's blindsided by an unexpected twist in her situation accompanied by nasty rumors.

Caroline Clapham isn’t a world renowned artist—she’s simply a farmer’s daughter possessed of natural talent with a paintbrush. Talent that her mentor, the Countess of Inglewood, is happy to foster for a summer at her beautiful seaside estate. Caroline wants to see the world and commit its beauties to canvas, but she fears that the season will end and she will return home as insignificant as ever. The lure of an adventure and the enchanting Inglewood estate keep her dreams alive, but when she meets Edward Everly and agrees to fake a courtship with him, those dreams begin to change.

Gregory Dinard, a young and inexperienced duke, finds himself in need of a companion to help him navigate the intricacies of his new role. Uncertain of his abilities and unwilling to take a chance at love, he looks for a marriage of mutual benefit rather than a match of mutual affection.

After years of escaping etiquette lessons in favor of the stables, Christine Devon's grand debut in London is only weeks away, though her deportment lacks the sophisticated polish she needs to achieve her goals of a lofty marriage. Desperate to take her place in society, she needs someone to instruct her in proper behavior. Thomas Gilbert, newly returned from Italy, is ready to begin his dream of founding a horse farm. But during his time away, the estate's finances have dwindled to almost nothing. A chance meeting between them may solve both their problems.

As a once happily married woman, Rebecca Parker lived a charmed life, but now widowed and working for a living, she feels alone and lives a mundane existence. That is until the day a valet speeding by on a horse nearly runs her off the road. Mr. Malcolm Henry is apologetic, gentle, and very handsome. She’s instantly drawn to him, which is why, rather than stopping him from kissing her, she finds herself kissing him back, reigniting a nearly forgotten passion in her. But love at first sight only happens in fairy tales—never to an ordinary woman like her.

Margaret Easton needs a husband, and she needs one now. Her parents are convinced that only a European will do, but Margaret wants nothing more than to stay in England. The trouble is that there is only one man Margaret can think of, or rather, one she cannot forget, and he wouldn’t do as a husband at all. Then she finds herself in his care unexpectedly, and her hunt becomes even more complicated than she could have ever imagined.

Rosalind Newbury is counting down the days until her wedding to the Duke of Marlow, a man she has only met twice. The marriage is more an agreement between two families and less a romantic connection between two hearts, but Rosalind becoming a duchess will elevate her family’s status to dizzying heights. And the duke is a kind man who will care for Rosalind, even if he doesn’t love her.

For Hudson, the newly titled Viscount Stildon, moving to England from India where he was born and raised was already an arduous enough endeavor. When he learns the fate of the racing empire he inherited along with his title depends upon him getting in the good graces of another stable owner, he's even more at a loss. The stable at the neighboring estate has been Miss Bianca Snowley's refuge for years, and when a strange man appears to be stealing the horses, she jumps to their protection without a second thought.

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.

Sowerby, England, 1802. Miss Genevieve Wilde—a magistrate’s daughter and independent heiress—is determined to meet life’s challenges all on her own, just as her late-father had taught her. So when her father’s pocket watch is stolen, she will do anything to get it back, especially when the local authorities prove incompetent. Upon reading an advertisement in the paper, she takes a chance and contacts a thief-taker to find the watch. It’s a choice Ginny regrets when former Bow Street officer Jack Travers arrives on her doorstep.

Evan Eldridge never meant to be a war hero - he just wanted to fight Napoleon for the future of his country. And he certainly didn't think that saving the life of a peer would mean being made the Earl of Whitelock. But when the life you save is dear to the Prince Regent, things can change in a hurry. Now Evan has a new title, a manor house in shambles, and a stranger for a bride, all thrust upon him by a grateful ruler. What he doesn't have are all his memories. Traumatized as a result of his wounds and bravery on the battlefield, Evan knows there's something he can't quite remember.

Newly returned from finishing school, Lady Juliette Thorndike is ready to debut in London society. Due to her years away, she hasn't spent much time with her parents, and sees them only as the flighty, dilettante couple the other nobles love. But when they disappear, she discovers she never really knew them at all. They've been living double lives as government spies-and they're only the latest in a long history of espionage that is the family's legacy.

The Home Office has asked Sir Bertrand Thorndike to head an investigation into stolen royal jewels. It's the perfect chance for Bertie to step out of his brother's long shadow. His superior, The Duke of Haverly, has a plan that makes him balk: in order to sell his cover, Bertie must play the part of a man looking for love, ready to reform his rakish ways. The duke is willing to let Bertie name his own investigative team, but his recommendation that the team include Philippa Cashel has Bertie on his guard. Does the duke-known for his behind-the-scenes machinations-have an ulterior motive?

When their elderly guardian dies, Faith Whitford is determined to set up house in Bath and look for respectable country gentlemen for her four sisters. She has no ambitions for mingling with the ton. What she did not expect was a new guardian, in the form of a London Beau to be appointed over them, nor that he would take any interest in their care.

Hampton Hall's new owner has the villagers of St. Hampton Heath all aflutter - all except Lavinia Ellison. The reverend's daughter cares for those who are poor and sick, and the seventh Earl of Hawkesbury definitely does not meet that criteria. His refusal to take his responsibilities seriously, or even darken the door of the church, leave her convinced he is as arrogant and reckless as his brother - his brother who stole the most important person in Lavinia's world.

Grace Sinclair has been callously cast out of her home. And though taken in as an orphaned child by the vicar and his wife, her unsurpassed beauty makes it impossible for her to remain in the vicar’s household - with two daughters of their own about to enter Society, the vicar and his wife see Grace as nothing but competition. Thankfully, Grace’s estranged Aunt Bell has agreed to take her in to her home in London. But Grace soon learns her situation has just gotten much worse.

Mary Bloomfield has no illusions. Her chances for matrimony have long since passed. Still, her circumstances are pleasant enough, especially now that she has found purpose in assisting her father with his medical practice in England's beautiful Lake District. Even without love, it's a peaceful life. That is until Adam Edgerton returns to the sleepy district. This decorated war hero did not arrive home to acclaim and rest, but to a new battle against the repercussions of an insidious disease.

Rowley Knight, Duke of Knighton, is too busy being a duke to bother with such nonsense as love. With three heirs, he is in no hurry whatsoever to succumb to the lures of the leg-shackles. He is content managing his siblings and estates, and avoiding society whenever possible. If he can only find someone to manage his young sister, life can go back to its proper order.

Determined to support her mother and sisters after her father's untimely death, Charlotte Mandeville covertly crafts satirical caricatures of high society. It not only puts money in her family’s bare pockets, but ensures the haut-ton cannot guard all the power and the secrets. Anthony Yorke has a guilty conscience and a brother to exonerate. When the key piece of evidence to clear his brother's name falls into the hands of a headstrong young woman, he is willing to do whatever is required to obtain it from her.

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.