The Books of Raziel, book 1: Archon
Sabrina Benulis2011

Angela Mathers is plagued by visions of angels, supernatural creatures who haunt her thoughts by day and seduce her dreams by night. Newly released from a mental institution where she was locked away for two years, she hopes that her time at the Vatican's university, the West Wood Academy, will give her a chance at a normal life. Unlike ordinary humans, Angela is a blood head - a freak, a monster, the possible fulfillment of a terrifying prophecy of overwhelming death and destruction. Only in Luz, the Vatican's wondrous enclave, are blood heads accepted and encouraged to discover what kind of powers or special abilities they might possess. But within West Wood, a secret coven plots, and demons and angels roam the streets searching for the key to open Raziel's book - a secret tome from a lost archangel. Some are determined to destroy Raziel, while others, like the beautiful Supernal Israfel, one of the highest of the high, wish to free him. And when the Archon - the human chosen to possess the spirit of a dead angel - rises as foretold, they will control the supernatural universe. Torn between mortal love and angelic obsession, Angela holds the key to Heaven and Hell - and both will stop at nothing to possess her.