User blog comment:FairyRaven/Fairy Tail Chapter 425: Sabertooth X792, Review and Commentary/@comment-24784846-20150324024207/@comment-7418318-20150324172844

Considering how Mary was created by another author in a story that already broke canon I think that's rather unlikely, but I wouldn't go so far as to call it a crack theory... but them I don't have too much of an idea how crazy something has to be to be called crack theory ;)