User blog comment:IamJakuhoRaikoben/Chapter 386: Galaxia Blade, Review./@comment-5668006-20140603033253/@comment-24546844-20140604161246

It may be something like this but not just this. Lumen Histoire is something so important and secret that only the masters may know about it (not even Ivan know what it is), being just a Mega Elixir would be a bit disapointing. There's this darkness thing Ivan said and Hades showing up just to say it's time to release it, so I guess it is something that will completelly change the plot. Somethng conected to Zeref or dragons in general. I wonder if it's something related to Acnologia, maybe it's whats left of his human soul.