Quote Originally Posted by Munsu View Post
For those that believe that Nashetania might be the culprit, any chance she could've activated the barrier from afar using her Sainthood or something along those lines?
We saw exactly how you're supposed to turn on the barrier when Adlet demonstrated it at the replica - place sword in stand, place hand on tablet, say words.
I think it is a bit of a stretch to say Nashe could have done that while being with the other 3 fighting off monsters. Sure, she could move the sword, but what about the rest?

Given how much they hyped this door/seal, it pretty much has to be Maura, the woman with the key, and you must be able to close the door with the key.
As for the "why", I have no idea.
We just don't know enough about the 3 newcomers to know any potential motives, or even their means if they have special abilities.