Innocent Blood

Addison is your average, 16 year old girl, but not quite. She has no idea how it happened, but something went wrong in her genetics. She has to feast on human blood and flesh to survive. But one day, a test comes up at her high school, and no one, not even the teachers knew what it was. Issued by the government, they told her. But something happens. She start working for the government as something like an assassin, and discovers a new part of herself, one that could be deadly.