Essential X-Men #4

In "Here to Stay (Part One)," Kitty Pryde puts the original X-Men through their paces in the Danger Room, only to discover their skills are rusty—just as Mystique strikes, breaking Lady Mastermind free from a S.H.I.E.L.D. prison. With the past and present colliding, old allies and new recruits must face a threat that blurs the line between memory and mission.

In "Here to Stay (Part Three)," Mystique manipulates illusions through Lady Mastermind to pull off a series of high-stakes thefts, while Cyclops tries to sway Angel toward his new school. Tensions rise as the Avengers, misled by the deception, confront the X-Men, believing them responsible for the blackbird’s capture.