Brain Drain

The Source sends a chameleon demon into the manor that Cole unmasks, but not before he has lurked around at least three days as a lamp spying out the girls' secrets. Why he wants the information and what he wants to do with it becomes a hot topic of debate. The Source then kidnaps Piper after setting an ambush in an alley and alters her perception of reality: she wakes up seemingly in an insane asylum called "Halliwell Hospital" where she has no powers, and Leo is one of the attendants. Paige and Phoebe are fellow patients, and where Prue was a patient who was healed and left while the attending psychiatrist is the Chameleon demon, Graft (in reality it is the Source who has killed Graft). He has discerned that her deepest secret is that she never wanted to be a witch, and having captured her to the underworld she is being ensorcelled by the demon and the Oracle. Consulting the Book of Shadows when Cole returns from questioning a demon and learning she is in the underworld, Phoebe has a premonition seeing The Source defeating Paige and herself with Piper's power of over speeding molecules (blasting). Her sisters must find a way to stop her from giving up her powers to the Source, while the three or more days the demon had spied in the house has armed him with some realistic and underlying guesses at their psychic weaknesses and fears, which he stands on their heads in order to break down Piper.