Feng Jun's first practical exploration targeted the Spirit Stone Mine in Leo Kingdom's waters.
Previously, he had never figured out how large or deep that deposit was. Now that the Stone Ring had been upgraded, he could harvest a batch of Spirit Stones and test it at the same time.
After reaching the Fourth Ring, when Feng Jun searched for nearby objects, they were no longer displayed on a flat plane but in three dimensions, as though he stood in the Void and sensed the minerals in every direction.
This Spirit Stone Mine was over 3,500 meters thick, and its coverage exceeded the limits of his perception. He tested several locations and reached a final conclusion: it covered nearly ten thousand square kilometers.
The mine had a typical olive shape, thin around the edges and thick in the middle. Feng Jun could not calculate its Spirit Stone reserves, but he finally discovered with delight that it contained Mid-Grade Spirit Stones—and in more than one place!
However, their scattered distribution also showed that the Mid-Grade Spirit Stone reserves here would not be very large.
If Feng Jun had wanted to, he could have drilled underground and mined the Mid-Grade Spirit Stones right away. But he was not in such a hurry. If he did it personally, the disturbance would be too great. It was better to let the seven Bell Formations mine slowly.
The meat was already in the pot. What was the rush? It was not going to grow legs and run away.
Then Feng Jun found the large bell and discovered that it contained roughly another three hundred thousand Raw Spirit Stone Ore. He took it out, added more Mid-Grade Spirit Stones to serve as power, then tapped Footprint and went directly to the Spirit Stone Mine in Poland.