Looking at the railway tracks in front of him,
Tang Qing felt his interest piqued.
Clearly, there was an established mine of considerable value here; otherwise, if it were merely common commodities like iron ore, mining them in these deep mountains wouldn't be worthwhile unless that duke had lost his mind.
Below this,
could only be something extraordinary.
That would be interesting.
Tang Qing was prepared to investigate thoroughly.
Watching the water continuously pouring into the cave,
he thought for a moment,
and had the fighters airdrop a high-power underwater searchlight afterward.
Tang Qing followed the current forward as it drifted.
Entering the cave,
the power of the water flow grew stronger but still couldn't shake him. Tang Qing could float wherever he wished, although it was only easy in the forward direction; if he wanted to go back, he would have to exert some effort.
At this moment,
