Instruct: Classify a given review as either positive or negative.
Query: An understated, underrated psychological thriller.

Originally marketed as "occult horror", Ariel is neither. It's a story of the madness that lies just under the surface, and what it takes to bring it out; the need to give evil a face and a name. Who better to scapegoat for unexplainable tragedies than the one who is Different? Ariel is adopted, and looks slightly unusual. Her unstable mother never fails to assume the worst, almost deliberately misreading the girl's ordinary teenage perceptiveness and need for privacy. By the book's end, almost everyone believes that Ariel is a monster -- including Ariel herself.Great characterizations, wonderful descriptions -- I want to live in Ariel's house. I could wish for a sequel, or just for more books like it.