Proof by Seduction (Thorndike Press Large Print Romance Series)

A gifted fortune-teller from a humble background, Jenny can make even the most sophisticated skeptic believe her predictions simply by batting her smoky eyelashes. Until she meets her match in Gareth Carhart, the Marquess of Blakely, a sworn bachelor and scientist. Broodingly handsome, Gareth is scandalized to discover his cousin has fallen under the spell of "Madame Esmerelda," and vows to prove Jenny a fraud. But his unexpected attraction to her defies logic.