There are nine notes in the tomb robbery notes. Why did Qi Tiezui die suddenly?

In the Old Nine Gates, Qi Tiezui died suddenly.

Qi Tiezui, a strange man of the Old Nine Doors, told fortune all his life, but never believed 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.

Extended data:

The nine families guarding Changsha are called "Old Nine Gates", and everyone knows the pronunciation of their names. Among them, Zhang Qishan (William Chan), the nine gates of the First Buddha, was ordered to investigate mysterious ghost cars and mysterious mines.

They and their partner Qi Tiezui (Hanson) turn to the famous opera actress Er Yuehong (a layman) who was born in an archaeological home for help, but in order to take care of his seriously ill wife and girl (crystal ornaments), Er Yuehong has already washed her hands. In order to make February Red come out again, Zhang Qishan and Qi Tiezui North Crescent Hotel searched for medicine for the girl.