User blog comment:FairyRaven/Fairy Tail Chapter 429 & 430: Code Blue & Purification Ritual, Review and Commentary/@comment-7418318-20150421105901/@comment-7418318-20150421111425

On MP Gray says: "I've only infiltrated one small part of it. I still haven't gotten anything on the main branch's location."

That sounds even more that there'll be stronger enemies to come.