C414 Strange sounds coming from the stone door

After accepting the little pig's suggestion, Shi En led the pig and dog to walk for around an hour. Previously, the little pig had stayed in the three secret rooms, but because it was short and its eyes were wide open, it avoided the illusion techniques on the gems. Suddenly, a strange sound came from the front of a tunnel. It sounded like the wailing of ghosts and the howling of wolves