Dark Possession: Number 18 in series by Christine Feehan
Dangerously close to becoming a vampire, Manolito De La Cruz has been called back to his Carpathian homeland - and has unexpectedly caught the scent of his destined lifemate, MaryAnn Delaney. MaryAnn is human and well aware of the aggressive instincts of Carpathian males. A counsellor for battered women, MaryAnn has no room in her life for someone like Manolito. But when she goes to South America to offer guidance to a young woman, she has no idea of the trap awaiting her. For she's been lured there by Manolito, who has seductive plans for the irresistible human female. Once there, she'll be his. Once his, she'll never be released. She is his dark possession.