With her headful of wild curls and wilder ideas and an unabashed love of experiments and explosives, society has labeled Lady Imogen Loveless peculiar…and doesn’t know she’s one of the Hell’s Belles—a group of vigilantes operating outside the notice of most of London.

One should never judge a duke by his cover. As far as London society knows, Giles Drew, the Duke of Basingstoke, is everything a proper aristocrat ought to be. But when a notorious scandal sheet publishes details of Giles's questionable bedroom antics, only one bride can salvage his reputation. Prim and penniless, Francesca Stanhope has resigned herself to a season full of the ton's snickering—until the Duke of Basingstoke's dizzying courtship transforms her fate. Yet wedded bliss quickly turns into a clash of wills as Franny realizes her handsome duke is a devil in disguise.

Lucy Waltham is hunting for a husband, but she needs some target practice. She turns to her brother's cold-as-ice best friend, Jeremy Trescott, the earl of Kendall, to test her seductive wiles on him before setting her sights on another man. But her practice kisses spark a smoldering passion - one that could send all her plans up in smoke.

Scandal has rocked the city of London. Colin Eversea, a handsome, reckless unapologetic rogue is sentenced to hang for murder and, inconveniently for him, the only witness to the crime disappears. Then again, throughout history, the Everseas have always managed to cheat fate in style: Colin is snatched from the gallows by a beautiful, clever mercenary. Cool-headed, daring Madeleine Greenway is immune to Colin's vaunted charm. Her mission is not to rescue Colin but to kidnap him, and to be paid handsomely for it.

Miss Cleopatra Lewis is about to be launched in society by her aristocratic grandfather. But since she has no intention of marrying, she visits a costume emporium specifically to order unflattering dresses guaranteed to put off any prospective suitors. Powerful and charismatic Jacob Astor Addison is in London, acquiring businesses to add to his theatrical holdings in America—as well as buying an emerald for a young lady back in Boston. He’s furious when a she-devil masquerading as an English lady steals Quimby’s Costume Emporium from under his nose.

A scandalous book by an anonymous author takes London by storm, and everyone is convinced its villainous “Lord K” is the greatly admired Earl of Knightly. Heartbroken that he left her at the altar, Miss Regina Leyland impulsively sought revenge by revealing the true Knightly to the world but never expected the uproar to bring enemies to her door. To keep her identity hidden, she must trust the one man with the power to destroy her.

Sophie Campbell is determined to be mistress of her own fate. Surviving on her skill at cards, she never risks what she can’t afford to lose. Yet when the Duke of Ware proposes a scandalous wager that’s too extravagant to refuse, she can’t resist. If she wins, she’ll get 5,000 pounds, enough to secure her independence forever. Jack Lindeville, Duke of Ware, tells himself he’s at the Vega Club merely to save his reckless brother from losing everything, but he knows it’s a lie. He can’t keep his eyes off Sophie, and to get her he breaks his ironclad rule against gambling.

Miss Georgianna Eleanor Heyford may be naught but a gentleman's daughter, but even she's heard the rumors about the Earl of Stannis's exceptional charm and good looks. Surely she can cater his luxurious yacht party without getting swept away. But a terrible misunderstanding leaves Georgianna fired, furious, and with little recompense. Which is precisely when her opportunity for vengeance washes ashore.

Thrice wedded, but never bedded, Mathilde Martindale has long lived in the shadow of her indomitable mother, and meekly done as she was told. Until one day she decides to become mistress of her own destiny and leave the royal court to find her own path.

American heiress August Crenshaw has aspirations. But unlike her peers, it isn't some stuffy British lord she wants wrapped around her finger - it's Crenshaw Iron Works, the family business. When it's clear that August's outrageously progressive ways render her unsuitable for a respectable match, her parents offer up her younger sister to the highest entitled bidder instead. This simply will not do. August refuses to leave her sister to the mercy of a loveless marriage.

Although Celeste Montgomery was forced into a marriage a year ago, her husband is more often gone than home, and she is living a quiet life. Until Investigator Owen Gregory shows up at her home to tell her some outrageous news: Her husband has been murdered...and he was also a bigamist, making her the third of three wives.

As a child, Devlin Ware thought his family stood for all that was right and good in the world. They were kind, gracious, and shared the beauty of Ravenwood, their grand country estate, by hosting lavish parties for the entire countryside. But at 22, he discovered his whole world was an elaborate illusion, and when Devlin publicly called his family to account for it, he was exiled as a traitor. So be it. He enlisted in the fight against Napoleon and didn't look back for six years. But now his father is dead, the Ware family is broken, and as the heir he is being called home.

Born into an aristocratic family, yearning for a life beyond Society’s strictures, Marguerite “Daisy” Townsend is an enterprising sleuth. Hired to obtain proof of a wife’s infidelity, she secures a position in the household of the woman’s lover, never expecting to be lured into the seductive blackguard’s arms herself. Devilishly handsome, David Blackwood, known widely as Bishop, quickly realizes the enticing maid is interested in far more than dusting. She aims to uncover his sins. Although tempted by the dangerous beauty, he can’t risk her learning the truth.

Evie Harlow is quite content running the quaint little bookshop she inherited from her father…or so she convinces herself anyway. It might not bring in much money, it's not very exciting, and it's not a very good way to meet eligible men, but Evie's always thought she was destined for spinsterhood, a dull life, and hard work.

Cora, Lady Dane, gave up her dreams of happily ever after a long time ago. Now newly widowed, the young mother is determined to finally live on her own terms... until a devastating betrayal shatters her hopes for the future. Faced with the prospect of losing her beloved children to overbearing relatives, Cora needs the help of the one thing she swore she'd never have again: a husband.