After entering the earth layer, Lin Feng discovered that the soil of this mine tunnel was indeed hard. Even with his current breakthrough to the second layer of Earth Transformation, moving inside was slow and somewhat laborious. However, being able to move was still a relief.
He clearly remembered the elder who passed down the technique telling him that the place where immortal stones truly originated might be below the mine, but the exact location needed to be found slowly by himself.
While moving in this mine's soil layer, Lin Feng slowly expanded his divine sense and found that his divine sense was inexplicably limited in range, being able to view places no more than fifty meters away. After descending about twenty meters, he discovered a lot of immortal stones, among which were many middle-grade immortal stones.
