Birthright by Sue Mydliak

Candra Rosewood wants revenge for her parents' death. However, her plans take a sudden turn when she falls for the vampire Kane Smith, who wants the lovely Miss Rosewood for his human servant. Marking her to be his, Candra's life will never be the same again. But in Utica, Illinois, secrets lie deep within the Rosewood family, unbeknownst to either of them. What is the mysterious locket she found, and what happened in 1817 that changed the life of the Rosewoods?