After laughing, the three of them naturally discussed the fate of the man—after the man entered the valley, he was not heard from.

Tang Chizhou pondered the strange ancestral precept of the old man's family, "If a medicine picker enters that valley, he will be in greater danger than ordinary people", why did he say this? He thought about his own experience, and felt that this sentence was indeed very mysterious: if they had entered that valley, he would not have recognized the plant, and they would not have cut the leaves, and then the earthquake of the mountains and the rolling of the stones seemed to have been caused by the cutting of the leaves of the plant. If he hadn't recognized that plant, this series of dangers that appeared one after another might not have happened, could this be a verification of the old man's family and the ancestor's teachings? - "If a medicine picker enters that valley, he will be in greater danger than ordinary people."

Suppose the old man enters the valley, even if he doesn't know the strange plants at the entrance of the cave, there is no guarantee that he will not find out that there are other plants in the valley that are also very abnormal, and then he will go over to look at them, and even pick leaves and so on, so a similar danger may occur.

The leaves of the plant at the entrance of the cave are very similar to a kind of switch, and at the touch of a light, the stone will roll down, and even the cave will shrink, and the mountain will vibrate, which is really weird.

Since this mountain has similar meridians to the human body, there must also be acupoints similar to the human body, and these acupoints are the key points on the meridians, as long as they are gently touched, they will cause a strong reaction as a whole, so this flower is also like the acupoints of the mountain.

Did the man the old man talk about, who never came out after entering the valley, encountered a similar danger as them, but he did not run away in time, and was stoned alive by the falling stones? This is very likely.

After Tang Chizhou said his conjecture, the professor and the old man next to him felt that this inference was very reasonable. But when they entered the valley, they didn't find anyone's bones.