Chapter 419, Jiuding

heard Professor Zhang say that Ye Feng was also surprised that what he bought at random could be compared to national treasure, which really took a big advantage.

Ye Feng couldn't help asking, "Professor Zhang, what is the origin of this thing?"

Professor Zhang pondered for a while, but instead looked at Shen Dan and asked, "Shen Dan, do you know Jiuding?"

Shen Dan was surprised when he looked at Ye Feng and didn't realize that Ye Feng picked up a leak at random, and this leak was a big leak. He heard Professor Zhang's question and thought about Jiuding and said, "It is said that Jiuding...