User blog comment:Miskos3/Fairy Tail 530: Neo Eclipse, Review/@comment-5672982-20170409041910/@comment-7418318-20170409073605

When Jellal wondered how nobody ever found it Anna replied that she hid it... I guess that means that covers the possibility of Acnologia feeling it, though the rest is certainly true.

Still Acnologia is not a stupid berserker. If they just suddenly stop he'll probably wonder why.

Not to mention that he might also attempt to blast them from a distance instead of ripping them apart in close combat... then his roar would be sucked in he would know he needs to avoid it.

This isn't so much a plan and more of a desperate gamble against all hope.