Juana has just had a horrible experience with Kino. She knows the pearl is evil and tried to throw it back into the sea. Kino attacks her, hits her in the face with his fist, and kicks her in the side. His behavior is becoming more animalistic, yet, she will stick by her man.
"There was no anger in her for Kino. He had said, 'I am man' and that meant certain things to Juana. ...Juana had need of a man; she could not live without a man....Of course she would follow him, there was no question of that." (pg 59-60)
Shortly afterward she finds the dead body and Kino's knife. She knows what has happened and realizes that their lives will never be the same. She will never have the same peace. She reacts logically. She drags the man's body out of the pathway and hides it behind a bush. She knows it will be found, it is just a matter of time.The pearl was cast behind a little stone. She retrieves it and takes it back to Kino. She tells Kino,
"You have killed a man. We must go away. They will come for us, can you understand? We must be gone before daylight comes" ( pg 61)
Her logic seems to shake the emotional reaction out of Kino and he becomes her man again. He sends her to the house to get Coyotito and some corn. He goes to the canoe which he finds has a huge hole in it. Juana goes to get Coyotito and finds that their house has been set on fire. She has returned the power back to her man and follows his directions.