C78 Could It be That They Were in the Process of Retreating from the Sea

The outer shell of the world, the crystal wall, is an invisible barrier; it's like a transparent outer wall of a soap bubble, separating the world of rules from the chaotic 'universe'.

It was now being catalyzed by "world magic," slowly closing and closing.

Once magic was activated, it was a long and inertial process, and the spellcaster did not need to do anything.

Therefore, Miss Themis