C1600 Terrible truth

Qin Lang had told his parents about the great calamity, and the result was that he was greatly taken aback: These two people didn't believe it at all! He even used his scientific theory to tell Qin Lang that he was purely suffering from hysteria, what great calamity had no basis at all? The current state of the Earth was very good, it still had billions of years of longevity left …

However, when