List the events that force Kino and Juana to leave La Paz on foot.

Kino and Juana go to the village to get the dealers to appraise the Pearl and perhaps a fair offer. The dealers lowball Kino and he leaves in anger. That night, Kino sits outside and guards his Pearl. Kino is violently attacked by a stranger. Kino fights him off but knows his family is not safe until they sell the Pearl. Kino decides to walk to the city to sell it.