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Marvel Premiere Classic Vol. 21: X-Men - Proteus HC

One of the X-Men's greatest allies must face her darkest secret when a child born of violence bends reality to his whims! The paranormal Proteus battles the X-Men in body and soul, shaking the psyches of even their strongest! But as Marvel's mightiest mutants face one world-threatening wonder, an even worse one awaits as the stage is set for the debut of Dark Phoenix! Collecting X-MEN #125-128, and CLASSIC X-MEN #32-33 and #36.

Image: Marvel Premiere Classic Vol. 21: X-Men - Proteus HC  - Marvel Comics

Marvel Premiere Classic Vol. 21: X-Men - Proteus HC