Born with a perfect memory, Lady Elizabeth Beckett has become one of the world's most notorious spies, despite being the daughter of a duke. She is shielded only by her code name: Shadow. When young ladies of High Society begin disappearing from London, Eliza has no doubt who is orchestrating these crimes; a heinous man she has been investigating for years. Vowing to save them before they are sold to the highest bidder, she must risk everything to stop him.

Miss Emma Wynn has spent the last year at Ashwick Hall under the protection of Lady Westcliffe. Her uncle and brother think her dead and must continue to do so until she attains her majority. She must prove she is a fit guardian to re-establish herself and protect her brother. When permitted to visit her friend, Lady Eagleton, she is drawn to the reclusive Mr Carne. She suspects, however, that some scandal is attached to him, and she cannot afford to be tainted by association.

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.

Lady Madalene Ramsbury has been summoned home from Miss Bell’s Finishing School to some unfortunate news. In three weeks, she is to be married to a man she’s never met. Rather than face a life she does not want; she flees from her own engagement party and elicits help from a most unlikely source. Society’s golden boy, Everett, the Marquess of Northampton, was outraged when a young woman suddenly appeared in his curricle. Was she attempting to trap him into an unwanted marriage? It would be just like some overzealous mother to put her up to such a ploy.

Patience Whitford spent the last two seasons watching her elder sisters make grand matches. She is thoroughly apprehensive with the notion of being limited by marriage. But that seems like an inconsequential concern with no prospects on the horizon to follow in her sisters' footsteps. And to make matters worse, she is uncommonly jealous of all of the military officers she's befriended and their grand adventures. When Major Ashley Stuart is assigned to investigate some petty crimes near his brother's estate in Greenwich, it soon becomes apparent that there is something much larger going on.

When a cryptic invitation brings Giulia Pepper to her uncle's remote estate in Devon, she arrives in dire need of a benefactor, only to discover that her uncle never sent her any invitation—nor does he want her there. Forced into a corner, Giulia must contrive a way to convince him to allow her to remain, just long enough to figure out where to go next.

After eight years in India, Oxford's most eligible bachelor, Edmund Price, has come out of the shadows to run for Parliament and is in search of an Egyptologist to value a newly acquired collection. Expecting a renowned Oxford professor, Edmund instead finds himself entangled with Ami, the professor's determined daughter. As they delve into the treasures, their connection deepens, but trouble emerges when a golden griffin—rumored to bear the curse of Amentuk—surfaces, and they're left to wonder if the curse really is at play, or if something more nefarious is hiding among the shadows . . .

Mary Hatcher traveled to London to procure a trousseau for her upcoming marriage. When she attends the Frost Fair and meets a different man that ignites her interest, she tamps down the unwelcome feelings. But when her host’s son arrives at dinner and she learns he is the man she met at the Frost Fair, she has a new challenge: She must spend the Christmas Season in the same house as him without falling in love.

Miss Grace DuPont has no wish to marry. However, her father is determined to gain entrance to the drawing rooms of the ton and believes his wealth and Grace’s beauty will be enough to attract an aristocratic suitor. Lord Bennett Sheldon is the perfect match for Grace - whether the gentleman wants her or not.

Richard Graham cannot believe his luck when his great-aunt promises him a fortune if he’s married by Twelfth Night. He can finally clear his father’s debts and save his beloved Belside Manor. Miss Ruth Steele meets all the marriageable requirements his aunt insisted upon, but he’ll need the help of her clever and beautiful sister, Grace, to win the quiet woman over. Not only is Grace a dear friend to his younger sister, with loyalties to his family estate, but she also happens to owe him a generous favor.

Prudence Leigh is well on her way to being a spinster. That dreadful future may be a few years away, but with every man chasing after her beautiful younger sister, Prudence has little hope of finding love. But when she receives a letter filled with heartfelt declarations, she discovers it’s not too late for her. But for such an ardent beau in writing, the gentleman acts quite strangely in person… Penmanship is not an important skill. Or so Dr. Parker Humphreys thought—until his love letter is delivered to the wrong sister!

When Arabella Grant’s wicked aunt dies suddenly, both Arabella and her cousin Lady Isabelle cannot help but feel relieved. She’d made their lives miserable, and now Lady Issie is free to read to her heart’s content, and Bella is free from taunts about her ignoble birth. Their newfound freedom is threatened, however, when Issie’s great-aunt commands her to travel to London for a come-out Issie has never wanted. Issie, who is in poor health, is convinced she’ll drop dead like her mother did if she drops into a curtsy before the queen.

Charity Baxter is trapped in a cage of her own making. After being the tyrant of society for years, she fell from grace—and fell hard. Now, she is overlooked at the best of times and openly despised at the worst of it. Though troubles have a way of changing a person for the better, no matter how she tries to repair her reputation, no one is willing to believe her change of heart. And matters are only made worse when an irritating naval officer appears in town, determined to pester her. Odious man! Why can he not leave her be?

After studying art under Miss Drake, a renowned painter, Phoebe Radcliff is certain she can finally move beyond the childish mistake that’s kept her away from home. She is thrilled when Miss Drake employs her to complete a complicated ballroom renovation. Everything changes, however, the moment Miss Drake is murdered. With her last breath she imparts the location of a clue to Phoebe. Can the biggest secret of Avonthorpe Hall be true? Phoebe is tasked to finish her work in the ballroom by Miss Drake’s infuriatingly regimented yet all-too-handsome nephew, Lt. Graham Burke.

Rose Portman, determined spinster, has a bit of a predicament. Her great aunt has challenged her to get married before Twelfth Night and promised that, if she does, Rose will inherit the perfect country cottage with the funds to maintain it. Rose has always wanted to get away from London and Society, and this could be her chance! But the catch is that Rose has to attend a holiday house party in York and find a husband among the guests. Worst of all… she must marry for love.

Lady Madalene Ramsbury has been summoned home from Miss Bell’s Finishing School to some unfortunate news. In three weeks, she is to be married to a man she’s never met. Rather than face a life she does not want; she flees from her own engagement party and elicits help from a most unlikely source. Society’s golden boy, Everett, the Marquess of Northampton, was outraged when a young woman suddenly appeared in his curricle. Was she attempting to trap him into an unwanted marriage? It would be just like some overzealous mother to put her up to such a ploy.

Madalene Dowding was devastated when her mother died, leaving her all alone. To honor her mother's legacy, she decides to use part of her fortune to open an orphanage. When a teacher at the orphanage goes missing, Madalene takes it upon herself to start looking for her, even if it means taking her deep into the unsavory parts of London.

Miss Dinah Ashmore has a problem: her sister has gone missing, and the constable isn’t taking it seriously. She decides to take matters into her own hands by hiring a Bow Street Runner, not understanding the danger she has put herself in. Nathaniel Calvert, Earl of Hawthorne, is an agent of the Crown. His assignment is to root out a radical group and bring them to justice. When Miss Ashmore mistakes him as a Bow Street Runner and explains her plight, he suspects that the missing sister might be connected to his case.

Amid the glamour and intrigue of the Congress of Vienna, Lena Arenheim and her musical family perform at aristocratic soirees to make ends meet. When, out of the blue, the sister of the arrogant Duke of Aldingbourne proclaims Lena to be her brother's long-lost duchess, her safe but small world is turned upside down. Amid opulent ballrooms and echoes of forgotten memories, Lina embarks on a quest to uncover the secrets of her past.

Born with a perfect memory, Lady Elizabeth Beckett has become one of the world's most notorious spies, despite being the daughter of a duke. She is shielded only by her code name: Shadow. When young ladies of High Society begin disappearing from London, Eliza has no doubt who is orchestrating these crimes; a heinous man she has been investigating for years. Vowing to save them before they are sold to the highest bidder, she must risk everything to stop him.