C423 Misfortune is also luck

By then, Lei Nian and the rest were already searching for an exit, but they were unable to find anything. "Could it be that there is only one entrance to this place, and no exit at all?" As Lei Nian spoke, he punched the wet and slippery cave wall. The power of his punch wasn't a problem to him but when he punched the cave wall, the cave wall didn't even tremble