Annan, Isaac, and Ofelia, following the guidance of "Julius," rose one level and reached the seventeenth subterranean layer.
This was also a highly confidential space.
Although its secrecy was somewhat less stringent than that of the eighteenth layer, it was still a secret area inaccessible to ordinary Wizards.
Up until now, every part below the ninth subterranean layer was completely confidential.
Various experiments and rituals that "Julius" was conducting, along with all his secrets, were stored between the tenth and eighteenth subterranean layers.
After all, the bottommost layer of the Magma Ban Tower contained "Julius's" brain and the proof of his once-human existence.
That place even stored the "core program" of the entire Magma Ban Tower, which could be said to be the sole vulnerability of both the Magma Ban Tower and "Julius."
If an invasion occurred, it would be nearly impossible for the invaders to reach this layer.
