商务旅行出差戴绿色帽子

I saw that in the secret book, something like parchment was used as a writing material. It is densely covered with all kinds of words. There are both ancient texts and modern immortal texts. There were also some red cuneiform characters that the two of them could not understand, but seemed to be similar to the characters on the Eight Formations of Immortals, Gods and Ghosts....