There was still a secondary reason why it had become a danger zone. It was mainly because some terrifying natural calamities would often appear in this mountain range. The cause of these natural calamities was not known; it was also not known how the natural calamities had killed people. In any case, many people had encountered such natural calamities and then died without realizing it. It was not known how they had died. In the end, the natural calamities disappeared. No one knew how they disappeared. In short, it was extremely strange. Even though a few Divine Magi had come here personally, they did not manage to find out the exact cause of these natural calamities.