C289 There Were a Lot of Treasures

This underground space was huge. At least Ning Xiao could only see the outline of the building with the faint black and white light. As for the boundary, he couldn't see it clearly. He estimated that it was at least a few thousand square meters.

The height of the building was several meters or even dozens of meters, and Ning Xiao was still dozens of meters away from the building. In other words