C669 Heart-stabilizing

Yuwen Tian took back the fast material, which was obviously twice as big as the previous one. The total amount of the two pieces combined could be used to refine a good weapon, and he was elated!

However, this feeling only lasted for a few breaths of time. A terrifying aura spread out and enveloped the entire cave, shocking Yuwen Tian to the point that he broke out in a cold sweat.

"Ah..