The seventh season opens with the sisters reeling from Gideon';;s betrayal, having lost faith in themselves and their instincts. Piper must deal with raising Wyatt and her new son Chris. Paige fights to keep Magic School open. This season introduced Zankou. Zankou is a demon whom The Source had locked away after a battle which brought him to power. Zankou begins to work to destroy the sisters leading them to make a life-changing decision in order to destroy him.