The Pearl: The Curse of the Oyster In The Pearl, by John Steinbeck, evil transforms certain humble citizens into envious savages. Evil was exhibited by the doctor who refused to treat Coyotito because his parents had no money. When the doctor heard of Kino and Juana's fortune in finding "the pearl of the world" (722), he boasted that they were patients of his while thinking of a better life for himself in Paris. Coyotito was healed when the doctor finally came to their straw hut. He deceived Kino by giving the baby a white powder that made him go into convulsions. An hour later he came and gave Coyotito the remedy