In this chapter, we meet a commoner named "Tang tian" who is on his way to "black mountain city" . He's not a member of the light guild, but he's still a common guy. He asks the guards if they'd like to go on a journey with him, but they refuse, saying it's too dangerous. The guards are very experienced, and they learn a lot from each other. They arrive at a small ravine, where they can relax. The white stuff in the ravine is a kind of snow sand, which is useful for warriors. The assassin in black glances at him for a moment, and then vanishes into the night.