But there are no minerals here, so Li Xiu has always been puzzled about the purpose of the Red Sand City Lord building the City of Light here.
Now, suddenly discovering such a cave, he was somewhat suspicious, wondering if it was related to the Red Sand City Lord's decision to build the city here.
The Light Pattern on the Demon Armor lit up, allowing Li Xiu to levitate and slowly descend, the fluorescence on his body illuminating the surroundings.
The cave walls were smooth stone, resembling a vertical tunnel. He descended two or three hundred meters, and the diameter of the cave did not widen or narrow.
This made Li Xiu very suspicious; perhaps this cave was not naturally formed but was pierced by some kind of force.
"Could it really be a hole drilled by the Red Sand City Lord? Why did he bore such a deep hole here? Could there be a gemstone mine below?" Li Xiu continued to descend, having exceeded five hundred meters without seeing the bottom.
