Essential X-Men #21

In "Nation X (Part Five)," Fantomex is tasked with handling a Predator X terrorizing San Francisco, while Cyclops battles the malevolent Void within his own mind in a high-stakes psychic war. As the X-Club uncovers that the invading Predator X creatures were secretly harvesting data on the X-Men through advanced nanotech, tensions rise across Utopia—where Magneto seeks Namor’s aid to stabilize the island, and Emma Frost, Psylocke, and the rest of the team grapple with the growing threat from an unseen enemy.

In "Nation X (Part Six)," Wolverine, Psylocke, and Colossus pursue a Predator X to New York, only to discover Fantomex has already dealt with the threat—leaving them to unravel the creature’s origins. Meanwhile, Magneto pushes forward with constructing a pillar to stabilize Utopia, drawing tension from Cyclops, who questions the unauthorized project, pushing Maggie to prove her place among the X-Men.