Devils in the Dark - The Devil in Miss Drake's Class, #1

To most of the Facebook Fifteen, bullying Audrey Bales was just a game-until two deep cuts with a Swiss army knife changed everything forever. Audrey didn't want attention anymore. After five weeks at Fairview High School, Audrey wanted to die. The doctors did the only thing they could with her: they put her away. But in Fairview, Virginia, the nightmare is only beginning. The chat session had not gone unobserved.
The Facebook Fifteen have drawn the attention of an ancient evil that lives only to punish those who would prey upon the weak. They are the ghosts of 1, 000 dead children-1, 000 suicides-and their master.Their master likes Audrey Bales. And as Audrey attempts to heal her mind and body, far from home, their master prepares for the revenge he will unleash upon her return.