: They discover the ghost of Margaret Fox , a famous historical psychic, is being controlled by a necromancer to kill those he deems "frauds".

is the seventh episode of the seventh season (S7E7) of the television series Supernatural .

It first aired on November 4, 2011. In this episode, Sam and Dean Winchester investigate a series of gruesome murders in , a town known as the "psychic capital of the world," where residents claim to be mediums. Plot Summary