The only way to cure her and break the other spells is to get the witch's spell book and reverse the magic. The ailing Buffy and Giles confront Amy's mother, Catherine, and find out that Catherine switched bodies with her daughter months before, saying that Amy was wasting her youth, so she took it for herself. Giles finds the witch's book and takes Amy and Buffy back to the school to break the spells.
To cure her and undo the other enchantments, they must acquire the witch's spellbook and reverse the magic. Ailing Buffy and Giles meet with Amy's mother, Catherine, who explained that she had switched bodies with Amy months prior due to believing Amy was wasting her youth by living normally. Giles discovers the witch's book and transports Amy and Buffy back to the school to break the spells.