While Liu Jie was using the Hurricane Owlet Moths to conduct surveillance, Lin Yuan was overexerting himself by drawing out massive amounts of spiritual power from his body.
He was activating the Source Sand that was underwater so that it could smash the rocks and generate tiny sand grains.
Lin Yuan stomped his feet and sighed.
The hardness of the underwater rocks in the dimensional rift is really no joke. It greatly surpasses that of the purple and black soil in the abyss dimensional rift.
Back in the controlled Class 3 abyss dimensional rift, Lin Yuan had sent the Source Sand to dive 100 meters and tunnel through the deep sediments so as to preserve the generated gravel's durability.
Unexpectedly, at 10 meters underwater, the rate at which the Source Sand was smashing the rocks was much slower.
It was extremely difficult for the Source Sand to generate gravel in such an environment.