At first, Li Dalong paid no attention to the lower concentration of Immortal Spiritual Qi in these mining tunnels compared with the others, assuming it was because the immortal stone deposits here had been exhausted.
After inspecting several more passages, he sensed that the Immortal Spiritual Qi here was noticeably thinner and felt that something had to be wrong.
Li Dalong began slowing his pace through the tunnel, preparing his defenses and carefully examining his surroundings.
Yet there seemed to be nothing wrong with the passages he had traveled through. Their walls were no different from those elsewhere. The only anomaly was the distinct decline in Immortal Spiritual Qi from the first mining tunnel beneath this mountain to his current location.
Compared with the earlier tunnels, the Immortal Spiritual Qi here felt far too thin. It was only two or three times as strong as outside.
By all rights, the Immortal Spiritual Qi in an immortal stone mining tunnel should not have been so thin.
After he inspected several more passages, something different finally appeared.
Small holes began appearing in the walls, and he could not see a single piece of the raw immortal stone occasionally visible in the walls elsewhere.
Instead, numerous small holes appeared in the passage walls, each measuring roughly 1.4 to 1.5 meters across.
It looked somewhat like a honeycomb. Yes, somewhat like soil burrowed through by earthworms on the Blue Planet.
In many places, he could see the passages on the other side. It felt as though this entire area had become a honeycomb connected in every direction.
Moreover, the Immortal Spiritual Qi here was even scarcer, barely different from that aboveground.
Fortunately, the interconnected holes of every size greatly expanded the range his Divine Sense could reach. Sparing no expense in Divine Sense, Li