It was an ordinary day like no other day. They were having breakfast together while Coyotitio was sleeping in a cradle. Then, Kino and Juana see a scorpion near Coyotito, and Kino decides to move toward the scorpion. Kino moved the cradle and the scorpion fell, thus,Kino caught it to smash it. However, it stung Coyotito. They go to a rich doctor's house and the doctor asks if they have money. However, since they were poor, they gave some pearls ,however, they were valueless and the doctor refused to treat the Indian baby.
Kino and Jauna go to Kino's canoe with Coyotito to find a pearl that will be enough to pay the doctor. Meanwhile, Coyotito is gettng worse spreading onto his face. Kino dives down to put tons of pearls in a basket. Then, Kino suddenely sees a shiny huge oyster. He comes back to the canoe, openig some oysters, and then he opens the huge oyster with his knife. After, they see it was a beautiful, big pear, and Coyotito swelling began to go away suddenly.
The news of Kino finding the Pearl of The World spread quickly in their town. Everyone beagan to think of what would they do with that pearl. Kino became everyone's enemy. Kino went to his brother and wife's house(Juan and Apolonia), and Kino was talking about what he would do with all the money. After, they went back home, the rich doctor and his servant suddenly came to their house. The doctor was going to secretly poison the baby, then he would come back to save the day and cure the baby to get a lot of money from them.
In this chapter, KIno and his family were going to sell the pearl to merchants. All the merchants were already alert that KIno and his family were coming to sell the pearl. Kino arrives and the buyers tried to dupe Kino by saying the pearl was valueless. However, Kino did not fall for those dealers because he knew that there was something going on amongs them. They go back home and KIno begins feeling paranoid. Therfore, Juana tells him to get rid of the pearl, but Kino refuses to.
Kino saw Juana secretly gluiding out of their brush house with the pearl. She was planning to throw out the pearl back to the ocean because she knew there was something evil about it. Then, Kino punched Juana, and she fell on the ground, however, she got back up. Then, he was going back to the hut and a dark figure came for him, however, he killed him with his knife. Then, Kino and Juana go to the canoe, but someone punched a hole and when they go back home it was lit on fire. So, they stayed at his brother's house that night.
Kino, Juana, and Coyotito travel north toward Lareto. They find a road, and when they rested Kino swept off their footprints. Then, they went to sleep, but Kino wakes up and warns Jauna to keep quite because he saw trackers from far. Then, they go up the mountains,and Kino started not to cover the footprints because of fear. After, they find water in a stream to drink. They stayed in a cave near the stream, and in the night the trackers came in and hanged near the stream. Coyotito begins crying, and the trackers shoots at the direction they hear, and hit Coyotito. Then, Kino comes in to strike them, and defeat them. They return home and throw the pearl back to the ocean.