The Loch of Phantoms is a small lake at the top of one of the Mystery Mountains that first appears in the episode "Gotcha!" It is dangerous to cross since it is inhabited by phantoms (hence the name), but there is a hidden safe path to the island in the center. Rocks thrown into the loch float on the safe path and sink elsewhere. On the small island is a cave that leads inside the Mystery Mountains. This cave also contains the Phantom Mirror.