C343

While Yin Zhu was still in a daze, he saw the stone door in front of Su Qingyue gradually open. He then replied with an "Correct answer."

A ladder appeared in front of Su Qingyue and Yin Zhu.

Yin Zhu was still looking at her blankly.

"How do you know?"

Su Qingyue raised her head and tapped her chin with her slender fingers, as if she was thinking about something.

"I don't know