It was said that the shepherds living in Kunlun Mountain would rather let their cattle and sheep starve to death on the Gobi Desert because they had no fat grass to eat than let them enter the lush, ancient and silent deep valley of Kunlun Mountain. Because this valley was the Death Valley, covered with wolf fur, bear bones, hunter's steel guns, and deserted hills and solitary graves, conveying a terrifying breath of death to the world.
Gu Ning thought that there were probably troublesome ghosts or monsters, which was more reasonable in her opinion. However, scientists believed that it was only due to geomagnetic variation, weather variation, terrain variation and many other factors that caused such a dangerous place to be born.
It wasn't wrong. The Door to Hell was indeed a place where the weather was fickle, the terrain was rugged and dangerous, with mountains, cliffs, valleys, quagmires, and pools.