As a notorious member of the Heirs' Club, Bray Drakestone can't resist a challenge from one of his well-heeled colleagues - especially when it involves money and horses. But the friendly wager takes an unexpected and deadly turn.

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 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.

Fredericka Hale needs a husband, and fast. She’s been caring for her deceased sister’s three young children, and now a childless cousin has petitioned the court for custody. Fredericka is powerless to stop her, but having a husband might sway the ruling. The last thing Fredericka wants is a hurried-up marriage to a man she doesn’t know―much less love, but she’ll do it for the children. So when the handsome Duke of Wyatthaven shows up with a proposal, she accepts. He’ll help her, and in return, they’ll lead separate lives.

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.

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.

Trevor Hunt, the Duke of Ridgely, has been called many things, most of which are true. Reviled by his family, hated by many, he's earned his reputation in the seedy streets of London and more than his fair share of bedchambers. But battling deadly foes and irate husbands failed to prepare the duke for the most troublesome role he's played yet: guardian to one maddening hoyden.

Lady Myrtle McQuoid has always felt a little forgotten, and this season is no exception. When her boisterous family vacates their London townhouse for the country, Myrtle finds she’s been left behind. But she just needs to stay warm, keep her belly full, and distract herself until her relatives realize their mistake and turn back to collect her. Surely that won’t take long.

Lady Honora Parker must get engaged as soon as possible, and only a particular type of man will do. Nora seeks a mate so abhorrent, so completely unacceptable, that her father will reject the match—leaving her free to marry the artist she loves. Who then is the most appalling man in Manhattan? The wealthy, devilishly handsome financier, Julius Hatcher, of course….

Maddie Montgomery’s family is in debt, and her hope rests on the rival Davies clan missing their yearly “pledge of goodwill", ceding the land that separates their estates. With Maddie’s teenage nemesis, Gryffud “Gryff” Davies, Earl of Powys, away, hope is in reach. But then Gryff shows up on a horse and is stunned that the tomboy he once teased is now a woman. When Gryff and Maddie discover contraband on their land, they realize it can benefit both families. But they’ve also uncovered a dangerous plot....

Shopgirl Poppy Fairchurch knows it's pointless fantasizing about the Duke of Autenberry. Still, dreams can't hurt anyone, unlike the carriage Poppy spies bearing down upon the unsuspecting duke. After she pulls him to safety, the duke lapses into a coma, and Poppy is mistaken for his fiancée. But one person isn't fooled: his arrogant and much too handsome half brother, Struan Mackenzie. Soon Poppy isn't sure what she wants more: the fantasy of her duke or the reality of one smoldering Scot who challenges her.

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.

Griff Knighton's found the perfect way to avoid being trapped into marriage with one of the Earl of Swanlea's daughters: He'll swap identities with his man of affairs during their next visit to Swan Park, and be free to pursue his own desires! After all, he's not about to marry some homely spinster just to claim his rightful title. But Griff didn't reckon on the brazen, voluptuous Rosalind, who could tempt even a saint into sinning, and Griff is no saint.

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.

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.