S04E19 We're Off to See the Wizard
Drama, Fantasia, Mistério
In the underworld, Cole is preparing to oath in the presence of the evil book of shadows Grimoire in a coronation ceremony to become the new The Source and achieves full power. The last wizard unsuccessfully tries to steal the Grimoire and associates to Piper and Paige to avoid the ceremony. Paige tells Phoebe that Piper and she believe Cole is a demon, and the upset Phoebe has a premonition confirming that her sisters are right about her beloved husband. Meanwhile, The See poisons Phoebe, using her pregnancy and her love for Cole to convince her to be the Evil-Queen of The Source.