C615 Entering the Great Tomb

The Blood Refinement Sovereign stared fixedly at Wu Zun, his gaze filled with unprecedented seriousness. It was because of the restrained aura of Wu Zun that he was unable to detect the aura of Wu Zun's cultivation base at all.

He was a Heavenly Immortal! Could it be that his opponent's cultivation had already surpassed that of a Heavenly Immortal?

As he thought of this