Doctor's visit and treatment of Coyotito
The Doctor's visit and treatment of Coyotito is the event that transforms Kino's discovery of the great pearl from a stroke of luck into a trap. Having refused to treat the scorpion-stung baby that morning because Kino had only eight worthless seed pearls to offer, the Doctor now appears at Kino's brush house after nightfall, drawn by the news that Kino has found the Pearl of the World. The visit is a calculated performance of medical authority designed to exploit Kino's ignorance and fear, and it succeeds: Kino, trapped by the centuries of subjugation that have taught his people to distrust their own knowledge, admits the Doctor and thereby sets in motion the chain of theft, violence, and death that will follow.
The Doctor's Reversal and Arrival
Standing in the doorway of his brush house as dusk falls, Kino sees two men approaching through the lantern light: the Doctor and the same servant who had shut the gate in his face that morning. The split knuckles on Kino's right hand, still raw from the blow he struck against the iron gate in shame and rage, burn when he recognizes them. The Doctor speaks first, claiming he was not in when Kino came earlier and that he has come at the first chance to see the baby. Kino, filling the doorway, feels hatred and rage flaring in the back of his eyes, but also fear, for "the hundreds of years of subjugation were cut deep in him." He tells the Doctor curtly that the baby is nearly well now. The Doctor smiles, but his eyes, set in their "little lymph-lined hammocks," do not smile. He warns that scorpion stings can have a curious effect: apparent improvement followed by sudden collapse, a withered leg, a blind eye, a crumpled back. He shifts his small black doctor's bag so the lantern light falls on it, knowing that Kino's race "love the tools of any craft and trust them." Kino's rage and hatred melt toward fear. He cannot take the chance of pitting his "certain ignorance" against this man's "possible knowledge." He is trapped, as his people have always been trapped, and he stands aside to let the Doctor and his servant enter.
The Examination and the Poisoning
Inside the brush hut, Juana stands up from the fire and backs away, covering the baby's face with the fringe of her shawl. When the Doctor holds out his hand, she clutches Coyotito tight and looks at Kino, whose face is lit by the leaping fire shadows. Only when Kino nods does she let the Doctor take the baby. The Doctor examines the wound on the baby's shoulder, then rolls back the eyelid and pronounces that the poison has gone inward and will strike soon. He points to a bluish tint under the eyelid, and Kino, looking anxiously, sees that indeed it is a little blue — but he does not know whether it was always that way. The trap is set; he cannot take the chance. From his bag the Doctor takes a little bottle of white powder and a capsule of gelatine. He fills the capsule, fits a second capsule around it, and works very deftly. He pinches the baby's lower lip until it opens its mouth, places the capsule far back on the tongue where it cannot be spit out, and gives Coyotito a drink of pulque. He looks again at the eyeball, purses his lips, and says the poison will attack within the hour. He will return in an hour. After he leaves, Kino wraps the great pearl in a rag, digs a hole in the dirt floor beside the wall, buries it, and covers the place.
The Baby's Sickness and the Doctor's Return
After Kino has finished his supper of beans and pulque, Juana speaks sharply. Kino goes to her and sees that Coyotito's face is flushed, his throat is working, and a thick drool of saliva issues from his lips. The spasm of the stomach muscles begins; the baby is very sick. Kino kneels beside his wife and says, "So the doctor knew," but he says it for himself as well, for his mind is hard and suspicious and he is remembering the white powder. Juana rocks from side to side and moans the little Song of the Family as though it could ward off the danger, while the baby vomits and writhes in her arms. The news of the baby's illness travels quickly among the brush houses, and the neighbors crowd in again, murmuring that "luck brings bitter friends." The Doctor hurries in, scattering the old women like chickens. He takes the baby, examines it, feels its head, and pronounces that the poison has worked. He asks for water, puts three drops of ammonia in it, pries open the baby's mouth, and pours it down. The baby splutters and screeches, and Juana watches with haunted eyes. Gradually the spasms subside, and Coyotito sighs deeply and goes to sleep. The Doctor puts the baby in Juana's arms and says, "He will get well now. I have won the fight." Juana looks at him with adoration.
The Demand for Payment and the Revelation of the Pearl
The Doctor closes his bag and asks, kindly enough, when Kino thinks he can pay the bill. Kino says he will pay when he has sold his pearl. The Doctor asks with interest whether Kino has a good pearl, and the chorus of neighbors breaks in, crying that he has found the Pearl of the World, joining forefinger with thumb to show how great it is. The Doctor looks surprised and asks whether Kino keeps the pearl in a safe place, offering to put it in his own safe. Kino's eyes are hooded, his cheeks drawn taut; he says he has it secure and will sell it tomorrow and pay then. The Doctor shrugs, his wet eyes never leaving Kino's. He knows the pearl will be buried in the house, and he watches for Kino's eyes to flick toward the hiding place. When Kino's eyes flick involuntarily to the floor near the side post, the Doctor has his answer. After the Doctor and all the neighbors have gone, Kino digs up the pearl from its first hiding place and reburies it under his sleeping mat. Juana asks him whom he fears, and after searching for a true answer he says, "Everyone." He can feel a shell of hardness drawing over him.
Consequences and Thematic Significance
The Doctor's visit is the first direct assault on Kino's new fortune and the moment when the pearl's promise of a better future becomes a source of mortal danger. By poisoning the baby to create a medical crisis he can then "cure," the Doctor manufactures both a debt and a pretext for searching Kino's house. The event reveals the full extent of the colonial power structure: the Doctor, a representative of the race that for nearly four hundred years has beaten, starved, robbed, and despised Kino's people, uses his medical authority as a weapon. Kino, despite his rage, is helpless against this authority because he cannot risk his son's life on his own judgment. The visit also marks the first time Kino explicitly names his fear: "Everyone." From this point forward, the pearl ceases to be a symbol of hope and becomes an object of suspicion, and Kino begins to build the hard shell of isolation and violence that will ultimately destroy his family. The Doctor's fraudulent cure is the hinge on which the novella turns from a parable of aspiration into a tragedy of obsession.
