On her 25th birthday, Charlotte Appleby receives an unusual gift: the ability to change shape. Penniless and orphaned, she sets off for London to make her fortune as a man. But a position as secretary to Lord Cosgrove proves unexpectedly challenging. Someone is trying to destroy Cosgrove and his life is increasingly in jeopardy. As Charlotte plunges into London’s backstreets at Cosgrove’s side, hunting his persecutor, she finds herself fighting for her life - and falling in love…

Lord Octavius Pryor leads a carefree and untroubled life, until the night he visits Vauxhall Gardens in the guise of a woman. At Vauxhall, Octavius discovers that being a female is very different from being a man. Annoyingly different, unpleasantly different, and - when he encounters the lecherous Baron Rumpole - dangerously different. Determined to teach the baron a lesson, Octavius infiltrates Rumpole's household, where he meets the woman of his dreams: Miss Toogood, governess to the baron's daughters.

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.

James Cantrell, the new duke of Tereford, has inherited a dukedom in disarray and is overwhelmed by his unaccustomed responsibilities. Then he gets an idea. Cecelia Vainsmede served as liaison between James and her father, and she knows a great deal about business matters, his own in particular. She's also quite pretty. Ever the pragmatist, he suggests a marriage of convenience.

American heiress Sophia Wilson leaves Old New York for a Season in London. Her goal: to marry into the English aristocracy and help improve her family's social standing in America. Sophia knows her marriage will be a business transaction - her father will provide a generous financial settlement in exchange for a title - but secretly, what she desires most of all is to marry for love.

Widower Benjamin Romilly, earl of Furness, lives a melancholy life. The loss of his wife in childbirth four years before has robbed him of all happiness. He can barely look at his son, who resembles his mother so strongly and is a constant reminder of her loss. But Jean Saunders, a relative of Benjamin's late wife, erupts into the grief-stricken household to restore order and take Benjamin's son away. From all Jean has heard, she assumes he won't care - but she doesn't know how wrong she is. As they come together to raise Geoffrey right, their budding attraction is undeniable.

Katherine Vareck is in for the shock of her life when she learns upon her husband Meri’s death that, before the accident, he had married two other women. And you know how the saying goes: Hell hath no fury like a woman who married a man who married two other women. Or something like that.

A soldier. And he has always been a rogue. What he is not, and never wanted to be, is a peer of the realm, responsible for an ancient heritage and the livelihood of hundreds. But when he is recognized as the long-lost son of the House of Wyndham, his carefree life is over. And if his birth proves to be legitimate, then he will find himself with the one title he never wanted: Duke of Wyndham.

Desperate times call for daring measures as Honor Cabot, the eldest stepdaughter of the wealthy Earl of Beckington, awaits her family's ruin. Upon the earl's death she and her sisters stand to lose the luxury of their grand home - and their place on the pedestal of society - to their stepbrother and his social-climbing fiancée. Forced to act quickly, Honor makes a devil's bargain with the only rogue in London who can seduce her stepbrother's fiancée out of the Cabots' lives for good.

Three months ago, governess Serena Barton was let go from her position. Unable to find new work, she's demanding compensation from the man who got her sacked: a petty, selfish, swinish duke. But it's not the duke she fears. It's his merciless man of business - the man known as the Wolf of Clermont. The formidable former pugilist has a black reputation for handling all the duke's dirty business, and when the duke turns her case over to him, she doesn't stand a chance. But she can't stop trying....

Everyone expects Billie Bridgerton to marry one of the Rokesby brothers. The two families have been neighbors for centuries, and as a child the tomboyish Billie ran wild with Edward and Andrew. Either one would make a perfect husband...someday.

Zachary Bronson has built an empire of wealth and power. Now he is seeking a wife to help secure his position in the ton...as well as warm his bed in private. But not just any woman will do for one of London's most notorious rakes. When he meets Lady Holly Taylor, he surrenders to the temptation to take her in his arms and kiss her. Yet he's pleasantly surprised to discover her fierce passions match his own.

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....

A decade ago, the Marquess of Bourne was cast from society with nothing but his title. Now a partner in London's most exclusive gaming hell, the cold, ruthless Bourne will do whatever it takes to regain his inheritance - including marrying perfect, proper Lady Penelope Marbury. A broken engagement and years of disappointing courtships have left Penelope with little interest in a quiet, comfortable marriage, and a longing for something more. How lucky that her new husband has access to an unexplored world of pleasures.

From Julia Quinn, author of the Bridgerton series, now streaming on Netflix - writing along with close friends and popular authors Eloisa James and Connie Brockway - comes The Ladies Most...: a duo of cleverly crafted novels, The Lady Most Likely and The Lady Most Willing, together for the first time.