Knave's Gambit

Valeria Harwood, a secret novelist, is called to London to try and talk her niece out of a pursuing a romance with the rakish Lord Haverhurst. Valeria is stunned when she realizes the nobleman exactly resembles the villain of her novels, even as she starts to be drawn in by his charm. But just as she realizes that he may be her perfect match, she comes across certain clues that suggest he might also be a French spy.