Kino and Juana go to the wealthier part of town to see the doctor since Coyotito was poisoned by a scorpion. One of the doctor's servants meets them at the gate and tells them that the doctor isn't there at the moment which causes Kino to punch the gate out of anger. The doctor decides not to treat Coyotito since Kino is poor and they can't afford it.
Juana tried to secretly throw away the pearl, but Kino beats her and takes the pearl back. Juana sees the evil in the pearl while Kino only sees the wealth the pearl could bring to them.
The color of the once shining white pearl now looks gray to Kino and he sees all the evil it brought to his family. He makes the decision of throwing the pearl back into the ocean since he doesn't want it to bring more evil.