Chen Mo and Nangong Xue chatted as they dug. Instead, it gradually calmed Nangong Xue down, easing her despair.
"Where did you get the feeling that there's a way out here?" Nangong Xue walked over as well, using her headlamp to illuminate the area while carefully examining the stone wall.
But in her eyes, there was nothing but stone—nothing else at all. She even pressed her ear to the wall to listen. Other than Chen Mo's thud, thud digging, which made her ears ache from the vibrations, she heard nothing else.
"I made a round earlier and found that the stone wall here is a little cooler than the walls elsewhere, so I think there should be a way out in this direction. Maybe if we dig for a while, we'll break through somewhere else," Chen Mo said.
"How long—or how deep—do you think we'll have to dig?" Nangong Xue asked.
"Hmm! I think probably one or two meters," Chen Mo said, sounding uncertain.
"Oh! But what if your feeling is wrong? Wouldn't it be a waste of effort if you dug several meters and found nothing?" Nangong Xue said.
"Things may be uncertain, but if you don't even try, how can you escape?" Chen Mo asked.
"If you ask me, rather than digging here with no certainty, we should dig where they blasted it shut! At least we know the passage is there, and we can roughly estimate the distance!" Nangong Xue watched Chen Mo dig, his movements flying as he worked. He was quite fast.
Before long, Chen Mo had dug out a sizable section. It was several dozen centimeters deep and more than a meter in diameter.
"Uh... have you considered whether there might be machine guns waiting for us at the exit?" Chen Mo asked.
"Ah!"