Nightshade Academy: The Complete Series:

Some people carry the blood of demons.
They often appear normal.
They may even be unaware of it themselves.
Until the curse activates. When a monster awakens, someone usually ends up dead.
But not all hope is lost.
All monsters are welcome at Nightshade Academy. Eighteen-year-old Nova Ray didn't have big plans for the future. She was comfortable living life quietly and unseen with her mother, but all of that changed the night a mysterious man triggered her curse and revealed her vampire nature. ...