C380 How is this possible?

How is that possible?

Elder Tong only saw a string of afterimages behind Ye Xiao, which quickly gathered together as if they had a consciousness of their own. Then, Ye Xiao's figure flashed, and entered into the huge illusory image, following which, the sky filled with vitality exploded, like a volcano erupting, or like a surging tide, violent and fierce.

However