Rubricon (Imposible Patrulla-X, 12) (Marvel gold)

The end of an era for the X-Men! Witness the conclusion of Chris Claremont's historic and legendary run, the man who guided the destiny of the Mutants throughout their golden age. The founding members, now known as X-Factor, take center stage after Proteus returns from the grave. Cyclops must make a life-altering decision, both personal and for mutants, after Apocalypse infects his son Nathan with a dangerous virus. Meanwhile, the X-Men return home and join forces with X-Factor to battle the Shadow King. When the dust settles... the two groups will become one for the most terrible conflagration yet against Magneto!