Chapter 166 Breakthrough

Clang!

The sound of striking a bronze bell suddenly filled the underground space.

Cheng Yi stared at Chen Mu, his face slowly showing a look of surprise.

He abruptly turned his head to look at Bai Miaojin.

"What's going on?" Just now they said that ordinary people can't withstand the Heartless Bell?

Bai Miaojin frowned, her eyes fixed intently on Chen Mu.

"Try again."

Without hesitation, Cheng Yi shook the Heartless Bell.

The massive sound of the bell once again pervaded the underground space, yet Chen Mu remained unmoved.

Chen Mu slightly lowered his head, the corners of his mouth lifting on both sides as he looked at Cheng Yi with a smile, "Why don't you try again?"

Somehow, Cheng Yi felt as though someone had violently seized his heart.

A familiar feeling welled up inside him, and he couldn't help but shout, "Who the hell are you?!"

Chen Mu's smile faded as he looked indifferently at the other party.

"Five Ghosts Moving Mountain!"