X-Men Pocket Book #13

Trapped: One X-Man! puts the X-Men to the ultimate test when Professor X’s powers mysteriously vanish, leaving the team to navigate their mission without his guidance. With Magneto manipulating events from the shadows, the Toad’s sudden dominance in a public athletic event ignites chaos—and draws the X-Men into a high-stakes confrontation that pulls Angel into the Brotherhood’s grasp on Asteroid M. As the team races to rescue their teammate, they face off against Magneto and his allies in a battle that challenges their unity and resolve.

In "Submariner! Joins the Evil Mutants," Professor X's curiosity about Namor's origins sparks a bold move by Magneto, who invades the Sub-Mariner's underwater realm with an offer to join the Brotherhood of Evil Mutants. Enchanted by the Scarlet Witch's powers, Namor hesitates—until the X-Men arrive, forcing him to confront his allegiance in the midst of a clash between two powerful forces.