Interested and a little bemused, Lan Wangji flips through a page or two of the book she has indicated. "Mn." As the ink dries, he indicates the first and fourth character, which of course are the same, with the opposite end of his brush: "Autumn." The second character and third character: "Wind, clear." And, finally, the fifth and sixth: "Moon, bright. It is the beginning of a poem."