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 lady does not smoke cheroot. She does not ride astride. She does not fence or attend duels. She does not fire a pistol, and she never gambles at a gentlemen's club. Lady Calpurnia Hartwell has always followed the rules, rules that have left her unmarried - and more than a little unsatisfied. And so she's vowed to break the rules and live the life of pleasure she's been missing. But to dance every dance, to steal a midnight kiss - to do those things, Callie will need a willing partner. Someone who knows everything about rule-breaking. Someone like Gabriel St. John, the Marquess of Ralston....

England, 1865: Newspaper columnist Lady Katherine Bascomb finds herself the subject of speculation when her latest article leads to an arrest in the murders plaguing London. The English believe women ought not to write about such vulgar things as crime, and a particularly attractive detective inspector is incensed that she's interfered with his investigation. To escape her sudden notoriety, Katherine heads to the country - only to witness a murder upon her arrival.

Hugh Philemon Ancaster, seventh Duke of Ripley, will never win prizes for virtue. But even he draws the line at running off with his best friend's bride. All he's trying to do is recapture the slightly inebriated Lady Olympia Hightower and return her to her intended bridegroom. For reasons that elude her, bookish, bespectacled Olympia is supposed to marry a gorgeous rake of a duke. The ton is flabbergasted. Her family's ecstatic. And Olympia? She's climbing out of a window, bent on a getaway.

Pretty and pampered, Lavinia Yardley always dreamed of becoming a duchess. But family disgrace forces her into marriage with the most vile duke in England, and she finds herself desperate for a way out. When a rustic stranger mistakes her for globe-trotting botanist Muriel Pendrake at a train station, Lavinia has a split second to decide whether to submit to her fate or steal someone else's.

Hugo Wilde, the duke of Lindow, has a drafty castle, eight naughty children - and no wife. Ophelia, Lady Astley, has a fine house, one well-behaved daughter - and no husband. Hugo takes one look at Ophelia and loses his heart, but she doesn’t want more children or a castle. She takes one look at him and heads for her carriage. Desperate to find a duchess, Hugo identifies an appropriate lady to woo. Yet when he meets Ophelia again, the duke realizes that he will marry her, or no one.

Evelyn Maltravers understands exactly how little she's worth on the marriage mart. As an incurable bluestocking from a family tumbling swiftly toward ruin, she knows she'll never make a match in a ballroom. Her only hope is to distinguish herself by making the biggest splash in the one sphere she excels: on horseback. In haute couture. But to truly capture London's attention she'll need a habit-maker who's not afraid to take risks with his designs - and with his heart.

Shy, bookish Sophie Brightwell is expected to make an advantageous match to improve her family's fortunes. Sophie's plans to make a spectacular debut go horribly awry when she and her three closest friends are expelled from a young ladies' academy for unbecoming conduct. Since the ton will be sure to close their doors on these disgraced debutantes, they determine that unconventional means need to be employed in husband hunting. Rakehells, the beau monde's wickedest members, might be the only men willing to overlook a young lady's besmirched reputation. But how does one catch a rake?

Bold, impulsive, and a magnet for trouble, Juliana Fiori is no simpering English miss. She refuses to play by society's rules: She speaks her mind, cares nothing for the approval of the ton, and can throw a punch with remarkable accuracy. Her scandalous nature makes her a favorite subject of London's most practiced gossips...and precisely the kind of woman the duke of Leighton wants far far away from him.

Lady Vesper Lyndhurst is beautiful, clever, and popular. Afforded every luxury as a duke’s daughter, she fills her days with friends, intrigues, and a self-professed knack for matchmaking. She may have sworn off love for herself, but she is rather excellent at arranging it. Faced with an insolvent estate, the Duke of Greydon has no choice but to return to England in a final attempt to revive his family’s fortunes. He’s been gone for years, happy to have escaped his mother and the petty circles of the ton. To his dismay, not much has changed, including the beautiful heiress next door.