What is tong yu with Snake Eyebrows and what is its function?

tong yu, the snake eyebrow, appeared in the masterpiece Tomb Robbery Notes of "Nanpai Sanshu", which refers to the array things that are usually placed in the mosque, and the keepsake of Wang Zanghai. The person who used the snake eyebrow tong yu to record the secret was Wang Zanghai, who hid Jurchen characters in the fish pattern through carving technology, and recorded some things that he was taken by the slave king to repair the tomb, among which the most crucial content was the truth he discovered about the slave king-a monster from the underground.

tong yu's function of snake eyebrows:

Wang Zanghai was the person who used the snake eyebrows tong yu to record the secrets. Jurchen characters were hidden in the fish patterns through carving technology. The content of the record was that the three snake eyebrows tong yu were connected together to record Wang Zanghai's life. He designed this tong yu to let future generations discover it slowly, which recorded the fact that he built a tomb for the emperor of Jurchen, and discovered that the wannu kings of past dynasties were monsters that climbed out of the ground. He was taken by the slave king Lu to repair the tomb, and the most crucial content was the truth he discovered about the slave king-a monster from the underground. There are three * * * articles in the book, which were put in the land of feng shui by Wang Zanghai in China.