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Once we stepped into the fourth floor, we were greeted with a large hall with no additional rooms. However, the hall itself was full of Divine Soul Beasts, but of a particular shape. They were fully armored on metallic black armor made of dark dragon scales, with phantasmal, humanoid and draconic bodies beneath. They also wielded weapons made of this black metal refined from dark dragon scales. Mostly long swords, but some also had hammers and axes.
The hall was surprisingly wide when no rooms were added at all, enough for over two hundred of these Divine Soul Beasts to fit inside. Their appearances weren't the only alarming thing, their size easily surpassed ten meters of height, and although they were much smaller, I was fairly sure their strength laid on their cooperative abilities.