After blaming the noise pollution on otson, Xu Nan's mood instantly brightened up.
In the next few days, he did not continue to practice the three songs near the mine of the lost city. Fireflow was very satisfied with this. It reported that the efficiency of the miners had risen again, and no one said that they had heard any terrible noise.
Of course, the rat groups near the city of lost also showed signs of revival.
There would always be two sides to everything. For the sake of his mining, before Xu Nan could find a more perfect solution, he could only tolerate this group of rats occasionally appearing in the periphery of his territory.
With the opening of the four mines, the cloud climbing coins were quickly put in, and a series of reward measures were launched, and more and more people of the ice field joined the ranks of miners.