The pearl chapters 3 and 4.

In Chapter Three, Kino tells the doctor that Coyotito is nearly well, the doctor claims that the scorpion sting has a curious effect that comes later and if he is not treated he may suffer blindness or a withered leg. Not sure whether or not the doctor is telling the truth, Kino nevertheless lets him see the baby. The doctor takes a bottle of white powder and a gelatin capsule, and gives Coyotito a pill. The doctor tells them that the medicine may save the baby from pain, but he will come back in an hour to check on him. After the doctor leaves, Kino wraps the pearl in a rag and digs a hole in the dirt floor where he conceals the pearl.

When the doctor returns, he gives Coyotito water with ammonia and tells Kino that the baby will get well now. Kino tells the doctor that he will pay him once he has sold his pearl. The neighbors tell the doctor that Kino has found the Pearl of the World and will be a rich man. The doctor suggests that Kino keep the pearl in his safe, but Kino says that he has it secure. The doctor realizes that Kino will likely look to the place where it is stored, and sees his eyes move to the corner where he had buried it. After the doctor leaves again, Juana asks Kino whom he fears, and he answers Œeveryone.'