Rosamund prides herself on her matchmaking skills. After meeting Marcus Worthing, Earl of Somerville and her older sister's childhood best friend, she knows she's found the perfect fiancé...for her reclusive sister. Unfortunately, she's spending far too much time thinking about the man.

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.

One minute, London banker Quinn Wentworth is facing execution. The next, he's declared the long-lost heir to a dukedom. Quinn has fought his way up from the worst slums, and now he's ready to use every dirty trick he knows to find the enemy who schemed against him. Jane Winston, widowed and pregnant, crosses paths with Quinn while her father is preaching to the prisoners. Believing his days are numbered, Quinn offers her marriage as a way to guarantee her independence and provide for her child. Neither thinks they'll actually have a future together.

When Hamish Montgomery learns his brother is getting married, he vows to stop the wedding. After all, his brother is a duke and is intended for someone else. Georgiana Butterworth is startled when a handsome Scotsman breaks into her bedroom and brandishes money. Evidently, he's mistaken her for her newly engaged sister and is trying to bribe her into not marrying his brother.

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.

Joan Bennett is a breath away from being a spinster. She’s had four seasons without a suitor. After reading a shockingly sensuous book, Fifty Ways to Sin, Joan decides perhaps it’s time to stop being proper and start being sinful, while she’s still young enough to enjoy it. And what better partner than her brother’s drinking mate, Viscount Burke? He seems the type to know how to give a lady a lascivious adventure.

Jasper Sutton—London’s most dedicated scoundrel—needs a wife, and he needs one quickly. He needs one yesterday, in fact. His requirements are precise: she must be capable of mothering the wild twin daughters who have unexpectedly appeared in his life, and so must possess the patience of a saint and the understanding of an angel. Better still if she is plain and has no expectation of a true marriage. He is not about to reform his ways.

Lady Aline Marsden was brought up to marry a man of her own class, but from the moment she meets John McKenna, she risks everything to be with him.

The sea is Deirdre MacKenzie's home, and the crew of her father's Baltimore clipper is the only family she loves. She's happier wearing breeches and climbing the rigging of the Maid of Alexandria than donning a dress and learning to curtsy. But when the War of 1812 erupts, the ship is captured by a British privateer, leaving her father, the captain, dead. Deirdre watches her crew herded into the hold, destined for the notorious Dartmoor prison in England.

They call him the Duke of Murder...The gossips whisper that the new Duke of Murdoch is a brute, a murderer, and even worse - a Scot. They say he should never be trusted alone with a woman. But Megan Windham sees in Hamish something different, someone different. No one was fiercer at war than Hamish MacHugh, though now the soldier faces a whole new battlefield: A London season. To make his sisters happy, he'll take on any challenge - even letting their friend Miss Windham teach him to waltz.

Fate has lavished beauty on the Merridew sisters - that is, all save the eldest. But plain Prudence bears no grudge; she loves her four beautiful sisters infinitely. So when their abusive grandfather is laid up with an injury, she seizes the opportunity to concoct an ingenious plan that will allow all five of them to escape the clutches of their legal guardian. All it will take is a little matrimonial deception....

Shunned by a society that puts attractiveness above all else, Lady Eliza Darby’s wallflower status keeps her from getting the one thing she wants most, namely, to be a mother. But, when her scorned older sister returns home to see all of her sisters wed in happy matches, it may be Eliza’s only chance to secure a husband and have the children she so desires. Jilted in a publicly humiliating display, Dax Kane, the Duke of Ashbourne, has sworn off love forever. But, when the title demands it, he selects the most perfect candidate for the position: Lady Eliza Darby.

Bianca Tate is horrified when her sister Cathy is obliged to accept an offer of marriage from Maximilian St. James, notorious rake. Defiantly, she helps Cathy elope with her true love and takes her sister’s place at the altar. Perched on the lowest branch of his family tree, Max has relied on charm and cunning to survive. But an unexpected stroke of luck gives him an outside chance at a dukedom - and which Tate sister he weds hardly seems to matter. Married or not, Bianca is determined to protect her family’s prosperous ceramics business, even when Max shows an affinity for it.

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.

When a promised inheritance turns out to be a fraud, shy spinster Charlotte Wilmont makes an impetuous wish that despite her lack of charm and fortune, she could capture the heart of the one man whom she's forever adored - Sebastian, Viscount Trent. With that utterance, Charlotte awakens shocked to find herself entwined with her beloved Sebastian. But the respectable man she knew is now a most rakish devil and she is...well, by some inexplicable magic, London's most infamous mistress.