C256

Mu Yunhua took a deep breath and removed the pouch that had been hanging at her waist, chuckling to herself, "I only brought it along just in case, but..."

As she spoke, she opened the pouch to reveal an item resembling a piece of parchment. Handing it over, she explained, "This was tucked inside a book cover. The book had been drenched in mud, and as I cleaned the cover