User blog comment:IamJakuhoRaikoben/Chapter 449: Mavis & Zeref, Review./@comment-5268982-20150824205005

Chapter was okay. I'm thinking that Lumen Histoire is either something exactly like Zeref, or something opposite to Zeref, something to counter his magic.

I think Mavis' sin is doing something bad to Zeref, and that's what makes them enemies in the future. But I still wonder how he found himself near her "grave", the Tenrou Island.