Captured by the Vampire Knight

Natalie has spent her life protecting her family—raising her sister and caring for her ailing father in a world ruled by vampires. But when a brutal raid destroys her village, she strikes a desperate bargain: her freedom in exchange for their lives.

Taken by Rayhan, a powerful vampire warrior, Natalie is forced to use her unstable magic to solve the murder of his father. If she fails, she may never see her family again. But...