Song Fubai recorded half of the lost Nuo opera in a remote mountain village. There is a sentence hidden in the lyrics: "The moon sets in the west and the window refuses to shine." The villagers said that people who could complete this tune were editing books at the ancient book library in the provincial capital.
He stopped Jiang Jinyue in the corridor of the Ancient Books Museum, his sleeves stained with peach petals brought from the mountains: "Sir, do you know what people used to glue shredded paper together in the old days?"
Jiang Jinyue lowered her eyes and said, "Alum should be added to the paste to prevent insects."
"No." Song Fubai suddenly smiled, "It's the moonlight."
Intention: Although there are thousands of people, you are you