The Darkest Touch — Jaci Burton

Ryder. The man was just as sexy as she remembered him: tall, lean, and dangerous, a demon hunter with the body of a god....

But archaeologist Angelique Deveraux has little time for lust. She's been hiding a gleaming black diamond, a prize everyone wants--including Ryder--and now she's running for her life. Hot on her trail is Ryder, a legendary demon hunter she desires but can't quite trust, a man with an insatiable need for danger and a few dark secrets of his own.

As sparks ignite between the rogue hunter and his latest prey, Angie's world is rocked again when her twin sister vanishes, stolen away by the same dark forces stalking Angie and the black diamond. With Ryder offering protection--and more--suddenly a woman who's never trusted anyone is falling for a man who isn't afraid of anything...except losing his heart. Now, as an all-out demon war erupts and Angie's family secrets unravel, Ryder's demon hunt and Angie's quest to save her sister are about to collide. And when they do, it'll send these two wary hearts on the wildest adventure of their lives--and maybe even save humankind in the process....