C608 Substitute

Hearing the sound, I looked down and saw that the tunnel was actually a small platform. On the other side of the platform, there was a dark rock wall, illuminated by a flashlight, emitting a dark glow. Upon seeing this, I walked up to the platform and groped around on it before nodding my head and saying, "So that's what it is."

After hearing what Tang Ran said, I felt a bit strange