User blog comment:FairyRaven/Fairy Tail Chapter 429 & 430: Code Blue & Purification Ritual, Review and Commentary/@comment-7418318-20150421105901/@comment-25111584-20150421172123

I'd pick MS' tl over MP's for this as it makes more sense. Gray stated that all Avatar cultists are gathering at Malva. He just managed to infiltrate on cell, but he never stated that is was a just a branch. From the way things are going on at Malva, Arlock is mp the leader and the cell Gray managed to get into is the main one, but there are too many auxiliary cells for them to destroy one by one, so they need to get them all in one spot. My interpretation anyway. ._.