C225 Volume 25 Observe from the Sidelines

Yun Long killed Esculo's Yellow Sand Dragon in no time. Esculo was like a lamb waiting to be slaughtered, unable to resist at all. He had no choice but to take out the invisible sand gall that he had been guarding for many years.

What was the invisible sand gall?

He saw Esculo holding an oval-shaped earthen yellow ball in his hand. It was the size of a fist