Complete story — includes the ending
The three sisters are railing at the complications and deleterious impact magic has on their lives when a portal opens in the middle of their stairway landing. An Elder named Gideon, Leo's old mentor at Magic School, calls upon Piper, Phoebe, and Paige to find out who cast the spell of darkness upon the school and conjured up the Headless Horseman, who has been beheading the teachers. While Piper and Paige tackle a group of surly teenagers, Piper becomes the horseman's next victim and become a functioning head on a table. Meanwhile, Phoebe is sent on a vision quest by a student Enola, who is a young shaman, and gets a glimpse into the demon free future, where she discovers she will have a child and she sees an older Wyatt and a brunette boy. Piper refers to the brunette as Wyatt's little brother. The little boy asks her for help and the vision ends and she sees Chris asking the same question which gives her a revelation. Questioning whether such a future is even possible, she is told she must be herself and accept her bad with the good about who she is and then it can happen—the advice the three sisters give the youth terrorizing the teaching staff. It is revealed that Zachary, a desperately unhappy telepath, is behind the attacks by using his power to tap into others powers. The sisters vanquish the Headless Horseman and convince Zachary to stop. Later at P3, Phoebe confronts Chris about who he really is and asks is he is really Wyatt's brother and thus Piper and Leo's son. For once Chris doesn't lie and confirms this, but only if he can get Piper and Leo back together in time.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Charmed season 6. HTML formatting and reference markers removed. · Content license