Leviathan by JL Gibson

Angels and Demons fight for the soul of Emery Summer. Who will win? Emery Summers is a young farmer, still reeling from the death of her mother and brothers. She and her father, along with her aunt have slowly put the pieces of a normal life together. That is, until a new neighbor arrives and shatters everything she’s ever known about life...and death. Demons are after her and she doesn’t know why. With the help of an angelic being, Emery has to fight! Or forever perish.