C810 Chu Bing's Growth

Hearing the Third Elder's words, Zhang Nan smiled helplessly.

Soon, Zhang Nan and Chu Bing returned to their rooms and began to cultivate.

After the primordial spirit entered the Cerulean Spear, Zhang Nan began to study the formation in the Cerulean Spear.

In fact, Zhang Nan still had some grudges in his heart towards Silent, because Silent only told him the weaknesses of the formation