She came to rob him of his fortune. He decided to steal her soul instead.Elara Vance is no "e;Diamond of the Season."e; She is a shadow in the ballrooms of Mayfair, a desperate wallflower with a family debt that could send her sister to the gutter and her father to a debtor's prison. When she breaks into the Duke of Rothbury's library to steal a handful of vouchers, she expects to find a fortune.Instead, she finds Arthur St. Clair.The Duke of Rothbury is known as the "e;Cold Tyrant"e; of the Ton—a man of iron discipline and frozen emotions. Haunted by the scars of Waterloo, Arthur has no interest in marriage, but he has a predatory cousin circling his title. He needs a shield. He needs a fiancée who can play the part of a besotted bride while he secures his legacy.