User blog comment:EvanDude345rv5/Fairy Tail 356: Tartarus Arc Prologue/@comment-82.20.156.238-20131020170057/@comment-4829046-20131021143205

I doubt that. Or else Hades would have known more about Zeref. I think Mavis' spirit just met Zeref while he was on the island. But they may have a past. In which case, I don't want Hades involved. I don't care about him anymore.