Berne, Lisa. Penhallow dynasty.

Avon romance.

"Philip Thane--rogue, rake and scoundrel extraordinaire--hadn't wanted to visit some dumpy provincial town to give a speech, but he'd struck a devil's bargain with old Henrietta Penhallow, the imperious family matriarch. Nor did he expect that once he got there, he'd somehow be living the same day over and over again. It's strange! It's terrible! On the other hand, it is giving him time to cozy up to the delectable, brainy Margaret Allen, in town to research the book she's writing. Philip is sure she'll fall starry-eyed into his arms, just as women always do. But to his amazement Miss Allen stands firm against his wiles, day after day. How can she resist his seductive charm? Why won't she change her mind? What must he do to win her heart? Maybe--just maybe--it isn't Margaret who needs to change, but rather a certain rogue, in love for the first time in his life