Reprints X-Men #17 and 18
"And None Shall Survive"
The X-Men are taken to the hospital after the battle with the Sentinels as the Army takes over the fortress. Charles follows the team to the hospital as a concerned observer but really wants to keep the identities of his X-Men a secret. But when unexpected visitors decide to drop in, Xavier dispatches Angel to check out the school. Little do they know a menacing enemy lurks the halls of the school. He's back, the return of Magneto.
"If Iceman Should Fail"
Magneto, thinking that the X-men are gone forever, has taken over the mansion and schemes to create a mutant army by scanning and removing cells from the parents of a mutant, Angel aka Warren Worthington III. In a desperate attempt to be free, Professor X breaks the mind inhibiting device used by Magneto to shut Charles down and Charles then contacts his only remaining X-Man, Iceman. Bobby holds off Magneto long enough for the X-Men to find their way back to the institute and defeat Magneto, for now.