On Muir Island, a wildly empowered Proteus attempts to end the X-Men!
The primary story reprints The X-Men #128 - The Action of The Tiger!, in which the original Proteus is killed in combat with the X-Men. In "Double Negative," the back-up story illustrated by John Bolton, a young servant at the Hellfire Club receives a lesson about power from Mastermind and the White Queen. Both the Steve Lightle cover and the Bolton back piece are original to this comic.
— Description from Comic Vine community (comicvine.gamespot.com).
