Talk:Great Labyrinths/@comment-2600:1702:3760:4100:E5E8:F364:C5EA:5D97-20190910191325/@comment-211667-20190910221340

What Freid destroyed was the Core of the Volcano which was keeping the whole mountain stable. The room of the Liberator inside the volcano is made differently, and isn't directly affected by what happens in the outside. So, what Hajime & Co did was before the whole place collapsed, they went inside the room, and sealed themselves, which gave them enough time to receive the Magic, and then later opened the room's door for a short while to escape using the Submarine.

There is also magic applied on the whole Labyrinth to allow them to restore themselves back, but how long it would take for the self-repair function to work is unknown (could take a year, or decade or century).