Eminence — Jennifer Watts

The stakes are higher than ever before in the conclusion to the Ex Nihilo Academy trilogy. Lily Hughes' world is falling apart with threats coming at her from every possible angle. Her Nephilim best-friend, Rowan, isn't speaking to her anymore and her vampire boyfriend, Luca, isn't letting her out of his sight.
When an unexpected and tragic event throws Ex Nihilo Academy into turmoil she is sent back to her hometown of California to hide out. But with her sadistic half-brother still out to get her and the Synod not far behind it's only a matter of time before the forces of evil find her. Torn between her heart and her head Lily must fight to protect the ones she loves while saving the supernatural world as she knows it.