X-Men Vol. 1 (1963-1981) / The Uncanny X-Men Vol. 1 (1981-2011) #493

Plot

Battered by Sinister, the X-Men retreat to the mansion to lick their wounds. But in the war for the future of mutantkind, the battle never ends. The school is overrun by a mysterious new player who enlists one of the X-Men's oldest foes. And when Cyclops learns who has the baby, he's forced to make a tough decision.

CONTINUED FROM X-MEN #205 / CONTINUES IN X-FACTOR #26