The candle had been burning all along, indicating that there was oxygen below, which meant there were ventilation holes somewhere unknown to them. This was good; they wouldn't suffocate.
"Follow me," Gu Qingheng said, extending his hand to grasp Yang Ruxin's.
"You come along too," Gu Qingheng didn't forget to instruct Lin Xiwang as well.
"Hold on," Yang Ruxin stalled, pulling out a bundle from her bag. She found a thick branch on the ground, wrapped the bundle around it, and lit it with the candle, creating a torch, "This is more convenient."
Gu Qingheng smiled, not bothering to ask her why she had so many things; he simply carried the torch in one hand and led Yang Ruxin by the other, moving forward.
The underground cavern was quite large, and they followed the sound of water, which soon led them to a river that was flowing.
"The water seems very clear," Lin Xiwang, feeling thirsty, reached to scoop some up.
"Don't move," Yang Ruxin suddenly cried out.