Prue worked as a specialist in identifying and authenticating auction pieces. She got her job from Rex Buckland (I've Got You Under My Skin), the son of the house's founder. What Prue didn't know was that a pair of warlocks working for the Source of All Evil had killed the real Rex, as well as co-boss Hannah Webster, in hopes of finding out whether Prue and her sisters were really the Charmed Ones.