Feehan, Christine - Dark Destiny (Dark Series #13)

Dark Destiny (Dark Series #13) by Christine Feehan

From the Publisher:

They were master's of the darkness, searching through eternity for the mistress of the light.

Her childhood had been a nightmare of violence and pain until she heard his voice calling out to her. Golden and seductive. The voice of an angel. He had shown her how to survive, taught her to use her unique gifts, trained her in the ancient art of hunting the vampire. Yet he could not bend her to his will, no matter how great his power.