Shi Mu noticed a blue light’s flash in the roots of the tree; it turned out to be a big hole. It was an entrance to a dark tunnel. A three-meter-wide hole had appeared in the roots out of thin air. A stone staircase could be seen inside the hole.
Shi Mu entered the tunnel.
The air in the tunnel rippled as Shi Mu stepped inside. The entrance of the tunnel became fuzzy, and then vanished without a trace.
Shi Mu passed through a short passageway, and arrived at a spacious underground space.
The walls of the tunnel were embedded with a number of ores. They were emitting a white light, and were illuminating the dark underground space.
The underground tunnel seemed to be a deserted mine; it was completely dry from the inside. There were traces of excavation on the surrounding walls. Moreover, there were around a dozen shabby stone rooms in the tunnel.