C3741 Xuan Zun's True Identity

The wrinkles on Old Master Mu's face were even more obvious. It was as if time had left a mark on his face. What was even more terrifying was that the life force in Old Master Mu's body was almost gone. He was barely able to breathe. The Peerless Expert must have used a lot of force to prolong his life. However, his life force was not much