User blog comment:IamJakuhoRaikoben/Chapter 457: Naked Battle, Review./@comment-4449950-20151019042901/@comment-5233713-20151019132525

@anon The Eclipse Gate is a magic from the Book of Zeref, that requires a Celestial Spirit Mage and Golden Keys to work, I hink that might be what links Layla to Zeref. I anyway the date of her death + her knowledge of the one magic, there's no way she's not related to all this back story.