Dynamite Mining!
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I looked in front of me. There was an enormous wall within this gigantic cave-like labyrinth maze. These walls were not here before, they suddenly emerged when we just stepped here, forming a dead end once more. However, I can easily sense the Boss through these walls, far away from here, but through this direction.
I've been using the Mental Mapping Skill to guide myself through this maze. I had originally thought I held the high ground in terms of this, but at the end the one doing this is capable of shaping the dungeon' structure to an extent, making it near impossible for us to get through guided by the map, and it would be even worse if we didn't had any.