In this chapter, we are introduced to a young man who has been looking for a piece of stone that he has been eyeing for some time. The young man pretends to be a jeweler and offers to sell the stone to the young man for a large sum of money. He tells the young master that the stone contains "martial crystal" , which is a type of iron that can be broken into and used as a weapon. The man is amazed that an ordinary jeweler would be able to open such a valuable item. He is also amazed that this young man has been able to break the stone and open it with such skill. The boy is amazed at the skill of the jeweler, who is a novice in the art of stone-cracking. He wonders if the jeweler can sell the stones to him for large sums of money, but the boy says that he can't because he has to find a few stones to throw them away. He then asks the boy if he can give him all the stones that the jeweler has opened in exchange for the martial crystal, and the boy tells him that he is a fastidious man. He says that if a stone opens a martial crystal but the cost of opening it is too high for the jeweler to make a profit, he will open the rest of the stones for him. He also tells the boy that if he fails to open the last stone, the boy will lose all of his money today. When the boy finally succeeds in opening thirty stones and two crystals, he exclaims that he wishes he had such luck. He wishes that he had been an expert in opening stones, because it would have made him a better jeweler. He realizes that the ten stones he took from the jeweler contain seven pieces of "martial crystals" .