C320

"Where is the mechanism?"

Wen Mei looked at the wall and sighed. At this time, she only wanted to see through the wall and make herself more resolute.

"We have to look for this, but it must be on the first floor. If we search carefully, we should be able to find it."

Ye Cheng said as he held his chin. This was also the question that he had been thinking about all along