Board Thread:News and Announcements/@comment-4548390-20160905163752/@comment-5448995-20161128224529

Didn't Beast say on the latest All-New X-men book that he was able to go back? unless he is lying apparently they can, plus stories can be written, find a way to do it.

Or they could have had an unfortunate encounter with the Terrigen Mist(now I'm being evil).