After Xuan Xiao walked upwards for several dozen zhang, the weeds thinned out significantly, revealing the dark black rock of the mountain.
Xuan Xiao studied this black rock for a long time before taking out a jade slip once more to observe and record.
The restriction on this black rock was completely different from the ones in the weeds. The weed restrictions were formed by combining the trajectory, curvature, and shape of the leaves with certain directional rules.
Chapter 1447