User blog comment:FairyRaven/Fairy Tail Chapter 329: Seven Dragons, Review and Commentary/@comment-4643135-20130505013544/@comment-49.206.143.242-20130507062927

or maybe he will...he might just appear at the end of this Arc and kill everyone one here..that would explain Mavis's Disappearence... Because Zeref has a connection with Achnologia...as some guy told that it was Zeref who made Achnologia a Dragon...