C766 Secret Information Regarding the Yin Tomb(2)

"Old man, you're not kidding me, are you? You were born in the prehistoric era, so how could you know about the great waves that happened in the past? It's not like you've never experienced it before. "

Suddenly, Nangong Yu thought of the problem and asked directly.

"I've lived for a long time. Why would I lie to you? I dug out a yellowed human skin parchment on the grave