500 Trapped inside and outside, slashing thorns and vines

Twelve days later.

In the secret room, Fang Yuan was seated above a cushion with both eyes closed, his whole body was tense, and his mind was in placid tranquility. His attention was solely focused on the turtle jade wolf skin Gu that was within his aperture.

Currently, the Gu floated atop his primeval sea within his first aperture; primeval essence was continuously poured onto it, which caused the Gu to emit a jade colored light.

The light radiated from his aperture, and illuminated Fang Yuan's entire body.

Gradually, the rays of light dimmed. The entire turtle jade wolf skin Gu dissipated into tiny fluorescent particles, thoroughly destroyed. 

Fang Yuan was already mentally prepared. Turtle jade wolf skin Gu needed to be consumed, and would leave imprints on the Gu Master's body, similar to the bronze skin Gu and iron bone Gu.

"These past few days I've been in constant seclusion, my body has finally been refined to turtle jade wolf skin."