C306 sound

After Ye Chengxing heard this, he carefully thought about it. Although the space here was small and made of cement, it seemed to be extending upwards. However, he didn't know how much he had climbed.

Ye Chengxing nodded to Shang Yu before continuing, "If I'm not mistaken, this path should be the one leading up to there. It's just that I'm not sure where it is