Fool Me Twice(Rules for the Reckless‪)‬

Sensible and lonely, Olivia Mather survives by her wits-and her strict policy of avoiding trouble. But when she realizes that the Duke of Marwick might hold the secrets of her family's past, she does the unthinkable, infiltrating his household as a maid. She'll clean his study and rifle through his papers looking for information.
Alastair de Grey has a single reason to live: vengeance. More beautiful than Lucifer, twice as feared, and thrice as cunning, he'll use any weapon to punish those who fooled and betrayed him-even an impertinent maid who doesn't know her place. But the more fascinated he becomes with the uppity redhead, the more dangerous his carefully designed plot becomes. For the one contingency he forgot to plan for was falling in love . . . and he cannot survive being fooled again.