As part of his storyline, the character later returns to evil after unwillingly becoming the new Source. As the Source, Cole is eventually vanquished by the Charmed Ones, only to come back from death itself in his attempts to win Phoebe back. By this point, he is one of the most powerful beings to ever exist. Driven insane, Cole is, through his own doing, once again killed by the sisters in the fifth season. When the character returns for a guest appearance in the seventh season, it is unclear what kind of being he is, but he states that he is caught somewhere between life and death, atoning for his sins.