C187 Bone Forging and Black Dragon

"Ugh!" Dian Feng endured the pain. He had completed the most dangerous stage, and that was the reconstruction of the skull!

This process was extremely dangerous. If it weren't for the dark sky keeping watch, he wouldn't dare to recklessly move his skull.

After all, the brain was called the "Forbidden Land of Gods". The slightest damage to it would result in a serious sequelae!

Fortunately