Ye Kong's guess didn't last for a long time. The ancestor of the original animal Valley cattle source, who was proficient in animals, gave an answer.

"in those days, the mending stone was lying in the center of the central holy land. At that time, it was not called mending stone. At that time, it was called the original stone of holy land. There are many creatures on the holy stone. Every day, they absorb the energy on the holy stone and practice. With a long time, many of them start to become powerful. Although these creatures are not smart, they regard this huge stone as their mother's respect. "...