History
Professor X cut ties with the X-Men after Jean Grey wiped out Magneto's mind following the experiences her and the others had in the future. They attempted to help mutants on their own, but were quickly targeted by Bolivar Trask and his Sentinels. Realizing that this spelt disaster for all other mutants, the X-Men rushed to collect those they knew about, including Kitty Pryde. Her parents were unwilling to let her go with them until Jean manipulated their minds, as she was now used to do. The X-Men then delivered Kitty to the relative safety of the X-Mansion.[1]