User blog comment:FairyRaven/Fairy Tail Chapter 357: The Nine Demon Gates, Review and Commentary/@comment-4489126-20131025101054/@comment-23817943-20131025110416

ok I have to agree with that. Mashima can come up with any magic to track Ultear so I guess she is at risk :l But, regarding the Zeref part, I think the 9Demons think of Zeref as a higher being and that they have never met him which explains why they have that creepy altar in their base so I think Zeref doesn't care at all >.>