User blog comment:FairyRaven/Fairy Tail Chapter 401: Igneel vs. Acnologia, Review and Commentary/@comment-77.194.131.12-20140922125827

END is a flame demon, but who said there was one END, if my memories are good the horsemen of the Apocalypse are four, so if END is a demon who can bring Apocalypse, maybe there are 4 END : one of fire, one of air, one of metal, and the fourth