Sands, Lynsay. Argeneau series.

Avon romance.

"Immortal Enforcer Valerian just wants to relax. His last assignment had been more grueling than he'd care to admit, and golf has always helped him unwind. If golf course owner Natalie thinks it's a little odd for him to tee off at sunset every evening, she's keeping it to herself...He knows Natalie is wary of a relationship of any kind...what will she think when she discovers he's an Immortal? His best course of action is to woo her the old-fashioned way'--