The fire was Zhang Yuanshan's famous unique skill. After attacking Zhang Yuanshan that day, Xiao Yi kept three of them. Now, he threw them all into the "Ethereal Fire Formation", which he had just comprehended. After that, he called out Gu Lu and used the Earth's Yin fire to burn them.

Moments later, there was a crackling sound coming from within the Fire Dragon Cauldron.