Mr. Moonbeam and the Halloween Crystal

Elliott attends his third-grade class like any other boy, except that Elliott isn't like any other boy. Endowed with magical powers, Elliott belongs to a secret world called Moonstone-and trouble is brewing. When the evil witch Noir steals The Halloween Crystal, it's up to Elliott and his third-grade teacher, Mr. Moonbeam, to stop Noir from invading the non-magical world on Halloween night. But can Elliott learn to master his powers in time?