Cain by Stephanie Jackson

http://www.amazon.com/Cain-Stephanie-Jackson-ebook/dp/B00N7LXIZS

Mica loved her work at the Smithsonian. Her job was to restore ancient relics, so that the world could again view them in all their former glory. She'd had no idea that one day one of the relics she loved so much would try to get her killed.

Since the day he'd killed his brother, Able, Cain had been cursed to walk the Earth and do the bidding of Heaven. His specialty was collecting cursed relics and keeping them out of the hands of evil men. And he did whatever he had to do to retrieve those relics.

He had no idea when he met Mica, that the relic he was chasing would either change his life forever, or end it, once and for all.