Wu Yazhi suddenly realized that he could no longer extract anything.

No wonder, being over a kilometer away from Ancestor Gu Ban's central control position and not paying attention, Wu Yazhi had never considered that someone could break his grand formation.

Realizing something was amiss, Wu Yazhi checked the situation above and went mad. The formation above had been destroyed, and without its activation, he could not extract the core substance of the star.

Unable to contain his fury, Wu Yazhi unleashed a magical technique and shot out.