When Arize of Mojoworld sets out to free his dimension, the resulting mayhem draws in the X-Men and X-Factor - and the X-Force of the future! But what does it have to do with Longshot and Shatterstar? Then, the X-Men travel to Russia to visit Colossus' parents - and his sister, Illyana! But will the villainous Soul Skinner bring tragedy to Colossus' doorstep? Meanwhile, Betsy Braddock returns! But if Betsy's back, who is Psylocke? The X-Men head to Japan for answers! And while Cyclops learns of a deadly new disease threatening mutants, Gambit and Rogue face a challenge of the heart. Plus: Learn the X-Mansion's secrets in a fact-packed guidebook! Collecting X-MEN (1991) #17-24, X-MEN ANNUAL (1992) #1-2, UNCANNY X-MEN ANNUAL (1992) #16, X-MEN: SURVIVAL GUIDE TO THE MANSION, X-MEN ANNIVERSARY MAGAZINE and material from X-FACTOR ANNUAL #7 and X-FORCE ANNUAL (1992) #1.