Zhang Chen heard the words of the Great Freedom Celestial Demon, and a look of joy appeared in his eyes: "You found it? What is unusual about this book?"
The Great Freedom Celestial Demon reached out and pointed at the book's binding line: "Look at this binding line, isn't it a complete strand?"
Upon hearing this, Zhang Chen raised his hand to examine the book under the light, seeing that the binding line was indeed a single twisted strand, threading the entire book together.
Not being a fool, Zhang Chen, upon hearing the mention of the binding line, thought for a moment and said, "You mean there is some Xuanji in this binding line?"
"Take it apart and see, then you'll know if my guess is correct." The Great Freedom Celestial Demon said.
Upon hearing this, Zhang Chen swiftly and carefully took apart the binding line, revealing a forty-centimeter-long line made of some unknown material, twisted into a thin string.
