Evie Jenkins didn't know what she was thinking by agreeing to switch places with her American heiress cousin. After all, she's naught but a poor—and usually quite sensible—companion. All she has to do is spend six weeks among London society, pretending to be an heiress . . . and ensure that absolutely under no circumstances does she accept any proposals of marriage.

When Veronica said "I do" to Sebastian Sinclair, Duke of Edgefield, she thought all her dreams had come true. He was dashing and doting, and she absolutely adored him—until he betrayed her trust, shattering their marriage, and her heart, into a million tiny bits. She hasn't seen her husband in the two years since, and she'd just as soon make it twenty. But when she learns that her beloved grandfather's dying wish is for her and Sebastian to attend the family's Christmastide celebration, she swallows her pride and asks him a favor: to pretend they're the happy couple they once were.

Spirited debutante Lady Olivia McLeod, cherished daughter of the Duke and Duchess of Strathaven, has two interests: solving mysteries and winning the love of her rescuer and secret crush, the infamous Duke of Hadleigh. When Livy joins Lady Charlotte Fayne's charity for young ladies and discovers that it is a front for a covert investigative agency, she is thrilled. Livy dedicates herself to solving a deadly case. Little does she realize that the path to danger will also lead to her heart's deepest desire.

An expert in etiquette, Emma takes her pristine reputation most seriously. But the devilish Lord Marlowe is determined to prove that some rules of proper behavior are made to be broken....

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.