Qingfeng and the others then entered the cave tunnel. Not long after they entered, he felt a rush of depressive energy.
This rush of energy was very light, and only Qingfeng could feel it because the Chaos Millstone was still in the depths of his mind, and his own spirit energy was very powerful; he was more sensitive to danger than anyone else.
Qingfeng waved his right hand and said lightly, "Let's move slowly, and be careful of the danger inside the tunnel."
Mengyao Xu said, "Brother Li, I haven't felt any danger, there are only spiritual veins, and there isn't anything else other than spiritual stones."
Qingfeng lightly smiled as he explained quietly, "There are spiritual veins, but don't forget about the many demonic beasts deep underneath the ground, like demonic snakes, spiders, and centipedes. They all love to hide inside the soil, and the spiritual veins underneath the tall mountain are where they live."