Oncerpotter2018
What if Apocalypse doesn't really die, only pretends to in order for the mutants to leave and be gullibly, to be foolish enough to erase him from the face of the earth. But when he does resurface, he's only on one mission: Revenge.
By the way this ships Erik and Charles but...
If you want the Charles and Erik ship that's not the clean version then check that one out on Fanfiction.net
*Fluff*
I loved this film so I'm making a Fanfiction about it and so here it is