Book of the Dead: Book of the Dead

Before my grandma died, she asked me to hang her body upside down from the rafters, and she also stuffed a blank book into my hand. On the day of the funeral, the sound of fingernails scratching suddenly came from the coffin. The old man in the village turned pale: "We can't open the coffin! She has a dead person's tongue in her mouth!" Later I found out that the book was called "The Book of the Dead". Every rule in the book was exchanged for the lives of the entire village. The first rule is: don't look back after dark.