Blood Witch by Gina Kincade

Appetites increase when there’s blood on the moon over Westwood Academy. Will the hunted become the hunter before it’s over?

Everyone thinks Mabe Marlow is a total freak when she is forced to skip classes due to her special condition. Making friends for the first time in her life is rough, but being alone is so much worse for the blood witch—not to mention everyone else. Her thirst for blood is growing, and Mabe is caught between wanting to run away and learning to accept help.
When the Council of Covens sends an Enforcer to track down rumors of a witch using blood magic, Mabe is forced to decide between a rock and a hard place. She doesn’t want to leave Westwood Academy, but what choice does she have? She can either go, give herself up, or risk the only friends she has ever had.
Can she prove she’s not a threat to magic and get the rune-marked Enforcer to back off? Maybe. But there’s a catch—Mabe might be more dangerous than any of them think.
Scars run deep for this solitary witch who’s seen more than a woman her age ought to. She’s come too far to back down now, but learning to trust others with her truth just might be the toughest lesson of all.

Welcome to Westwood Academy. Forget what you know and let your magic run wild.