Thea Knight loves a spot of mischief. She especially loves her current mischief: masquerading as her sister, while finalizing her scheme to expose the dastardly knaves whose lies ruined her life. Then big, bad-tempered Lord Luxborough upends her game by maneuvering her into marriage. But it's her sister’s name on the license, so the marriage won’t be valid. Thea’s idea? Keep pretending to be her sister until she can run away.

When the dangerous men who killed her husband in a political assassination threaten Ara, Duchess of Burghly, the Crown assigns her a bodyguard. But the man charged with protecting her is no stranger. He’s Clayton Ludlow, the bastard son of a duke and the first man she ever loved. Eight years after he took her innocence and ruthlessly abandoned her, he’s back in her drawing room and her life. This time, she’s older, wiser, and stronger. She will resist him at any cost and make him pay for the past.

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.

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.

He's the Duke of Carlisle, leader of a secret branch of the Home Office charged with keeping the peace amidst great peril and upheaval. By day, he hunts anarchists and murderers with savage intensity. By night, he rules over London's darkest, most depraved souls. But he's about to meet his match in his latest prisoner. She's a strong, independent woman who's fearless and determined. She's unlike any lady he's ever known, as unfettered and plucky as can be.