C496 The Legend of the Outworld Flying Demon

"Take a look. " Mu Sheng opened his hand and took out the stone in his palm.

Nangong Shuangshu looked at him and said, "Why are there two colors on this stone? The outside is black and the inside is green. Is it also corroded by this black fog?"

Mu Sheng nodded his head and said. "Maybe it is. Look, when we came here just now, although the rock was also black, However