Books in Art Revelations series

In a world filled with wizards, elves, vampires, pixies and humans lurks a threat more dangerous than anyone can imagine. After the battle between demons and wizards last year, everyone believes the world is safe once again. The students at Wonderment are eager to start a new school year. They all assume the danger of demons has past. Evangeline knows better. Her nights are plagued with dreams of a large horned demon and her days are tormented with the certainty that something is watching her every move. Evangeline's nightmares become a reality when demons begin showing up unannounced once again. As if things couldn't get worse, Evangeline realizes the demon from her dreams could be someone at Wonderment. When she doesn't know who to trust it seems as though only one thing is for certain, The demon is waiting for the right time to strike and it is only a matter of time before Evangeline has to face it.