New York Times best-selling author Sarah MacLean follows her highly acclaimed Bombshell with Heartbreaker, featuring a fierce, fearless heroine on a mission to steal a duke's secrets...and his heart. A Princess of Thieves. Raised among London's most notorious criminals, a twist of fate landed Adelaide Frampton in the bright ballrooms of Mayfair, where she masquerades as a quiet wallflower--so plain and unassuming that no one realizes she's the Matchbreaker...using her superior skills as a thief to help brides avoid the altar. A King of Reputation. Henry, Duke of Clayborn, has spent a lifetime living in perfection. He has no time for the salacious gossip that arises every time the Matchbreaker ends another groom. His own reputation is impeccable--and the last thing he needs is a frustrating, fascinating woman discovering the truth of his past, or the secrets he holds close. A Royal Match. When the two find themselves on a breakneck journey across Britain to stop a wedding, it's impossible for Clayborn to resist this woman who both frustrates and fascinates him. But late-night carriage rides make for delicious danger...and soon Adelaide is uncovering Clayborn's truths, throwing his well-laid plans into chaos...and threatening to steal his heavily guarded heart.