Nightschool: The Weirn Books, Volume 4 (Nightschool: The Weirn Books #19-24)

The Sohrem is rising, the Hunters are on the move, and Alex is caught in the middle! As forces conspire to draw the young weirn and her allies back to an empty school, the shadow of the enemy who has been pulling all the strings begins to show. But is it the enemy without - or the one inside her - that Alex should fear the most?!