C3755 The Mysterious Black Sword!

A sharp light flashed in Bai Yu's eyes. Just as he was about to make a move, Mu Xiufeng hurriedly stopped him.

After that, he said to Qin Fei, "Old Qin, let them go. It's time for that ominous black sword to leave our Heavenly Sword Mountain."

"Old Mu!"

Qin Fei's eyes widened as he looked at Mu Xiufeng in disbelief.

He did not understand why Mu Xiufeng had become so weak