(W/A) Various (CA) Stuart Immonen. The X-Men are shaken to the core by the fallout from BATTLE OF THE ATOM! Kitty Pryde is particularly affected* and her faith in Wolverine's Jean Grey School is eroded. With her students gone* what is Kitty to do? Meanwhile* X-23 is back* joining the All-New X-Men and...kissing Cyclops?! What does this mean to Jean Grey? When Jean and X-23 are forced to team up against a mysterious force* she'd better figure it out fast! Plus: it's the 50th Anniversary of the X-Men* ring it inwith some of the greatest creators to ever work on the X-Men! Collecting ALL-NEW X-MEN #18-21* X-MEN GOLD #1 and material from A+X #18.