Why did Qi Tiezui suddenly die in Old Nine Doors?

Qi Tiezui is also a delicate person, but he is not as calculating as writing three masters. After foreseeing the tragedy of Lao Jiumen, he was depressed and finally died suddenly.

Qi Tiezui is a strange man in the Old Nine Gates. He talked about God all his life. Although he is a fortune teller, he never believes in ghosts and gods. See something, say half a sentence, hide half a sentence, but even the half sentence he said, others will buy it for thousands of dollars. Qi Tiezui is incompetent. He is famous for his mouth and fortune telling. He makes good use of all kinds of props and gadgets, which can often come in handy in times of crisis.

Qi Tiezui, the extended information, is a divine operator, so he has reached the future of the Old Nine Doors and naturally made plans for his future. The Old Nine Gates didn't lag behind. Some people say that the concubine in Tomb Raider Notes may be the flower name of Qi Tiezui. In fact, concubine Yu is Qi Tiezui's son.

Many people think that Chyi Yu looks exactly like Wu Xie. This is because "Notes on Grave Robbery 8" mentioned that all the skills and calligraphy that Wu Xie practiced since childhood were cultivated according to Chyi Yu, which led people to think that the person who saw the ground crawling in the video was Chyi Yu. In fact, the article does not explain who the person in the video is, nor does it explain that Chyi Yu and Wu Xie look alike.