According to this manuscript from the early Ancient Era, the rightful owner of this space, an Alchemy Master named Vasel, had excavated this cavern and several other rooms. However, he had also fallen into the very same room that Ling Xiao and the others had.
Although he was an Alchemy Master, his own strength was not weak. The manuscript recorded that he possessed the power of a Saint-tier Great Mage at the time.
Of course, Ling Xiao and the others had no concept of what the power of a Saint-tier Great Mage entailed. By the late Ancient Era, Mages only appeared in legends, let alone in the current age of Martial Artists.
