Did i spell that right? well im to lazy to check.. ಠ_ಠ Well we all know the Great mysterious light of Fairytail but no one (but our favorite troller Hiro Mashima) Knows what it is. so here are my theories.
|It's E.N.D.. I know it seems odd but my gut tells me its E.N.D. end is another unknown.... thing in fairytail and Hades described lumen histore Fairytails darkness.(Mavis also described it as light though). and why would Acnologia go after something is it was on his side how does that work? so in my first theory Lumen Histore is E.N.D.|
|A highly powerful magic weapon something that can wipe out a town maybe. it doesn't have to be physical though it can be maybe a weapon that if anyone comes in contact with it gets some sort of ultimate power and fairytail watches over it( without the council knowing.) i know again a long shot.|
|Hiro's just being his evil little self and is trolling us i its just a big ball of light. This is my 'end of world' theory (least likely) but it may just be the most reliable.|