For a moment, Shen Gu found it difficult to judge what Zheng Bin was doing suddenly in the darkness.

The third person to open their eyes in the darkness was Liu Hui.

This hit the nail on the head of Shen Gu's previous guess about him, but he did not immediately take any action. Instead, he sat motionless against the rock wall, as if patiently waiting.

It seemed like he wanted to wait until the others were sound asleep before taking action.