Editing Professor X (section)

===House of M===
In a prelude to ''[[House of M]]'', Magneto's daughter [[Scarlet Witch]] has a mental breakdown and [[Avengers Disassembled|causes the death of several Avengers]]. Magneto brings her to Xavier and asks him to use his mental powers to help her. Although aided by [[Doctor Strange]] and the appearance of Cassandra Nova, Xavier is unsuccessful. Xavier orders a meeting of the X-Men and Avengers to decide Wanda's fate.<ref>''[[House of M]]'' [[Limited series (comics)|limited series]]</ref> Her brother [[Quicksilver (comics)|Quicksilver]], believing the heroes plan to kill her, speeds off to Genosha and convinces Wanda that she could right the wrongs she inflicted by using her powers to alter reality.

Quicksilver somehow forces a tearful Wanda to reveal to him her heart's desires of Magneto, the assembled New Avengers, and the X-Men, and then uses her powers to make them all real. Thanks to Magneto, though, this re-imagined world is a place where a much more numerous mutant-kind are the dominant species, humans a disenfranchised and oppressed 'silent majority', and Magneto himself rules supreme. In this reality, the only proof that Charles Xavier ever existed is a secret monument in Magneto's palace garden, with the engraved message "He died so Genosha could live".

After mutant [[Layla Miller]] restores the memories of some of the X-Men and Avengers, they head to Genosha where they discover that Magneto has erected a memorial garden for Xavier commemorating his death. Emma is horrified until [[Cloak and Dagger (comics)|Cloak]] fades into the grave and discovers there is no body inside. After a battle, Scarlet Witch again uses her powers to restore reality and, as a slight against her father, causes a large majority mutants to [[Decimation (comics)|lose their powers]], leaving the mutant race on the brink of extinction and causing the lost powers to become an energy mass, [[The Collective (comics)|the Collective]]. With reality restored, Xavier is still missing and the X-Men are unable to detect him with Cerebro.<ref>''House of M'' #1-8</ref>