Visiting Rean's Master

"Such a weird thing..." Roan couldn't help but comment. "Eagon, do you know something like this, a barrier that only stops one specific type of being?"

Eagon nodded. "Well, there are quite a few types of formations that you can configure to block only a specific type of material, race, etc... However, they don't create a different dimension to achieve that. First of all, this thing is not a formation. You could deactivate a formation by destroying its runes. Yet, this thing doesn't have any runes whatsoever. Seems like a different concept."

Roan agreed with Eagon. He had seen a formation back in the Floating Islands of time where Rean's Earth Father made the cubic barrier that stopped everything except beings of Light. Nonetheless, that formation had its runes and could still be destroyed if the runes were targeted. At the moment, they simply didn't know if there was something that could be attacked to start with.