We could have a conclusion where Jean burns through time. It burns, and goes back, and back, and back, and she finds herself walking the halls of the School, just as Charles is yelling "X-Men emergency!". Rather than head for Cerebra, she goes to a classroom. She walks in as Xorn is addressing the special class. "Sorry to interrupt..." ZAP!!! Mags is taken by complete surprise, and slumps unconcious to the floor.

E