The fire started by Luini devastates the only cornfield that Romeo's family has left. Romeo's family rush to the field to try to save the domestic animals, but Roberto injures his head while leaping out of the flames. After this tragic incident, Roberto's injury worsens and a rumor about Roberto intending to sell Romeo to the god of death spreads in the village. Then, after an argument with his father, Romeo runs away from home and hides in Anita's barn, where he hears that Roberto is not his real father. Meanwhile, Luini approaches Roberto and pressures him to sell his son.

In Milan, Romeo and Alfredo are sold as chimney sweeps to different bosses, having to separate, but not before swearing eternal friendship. Romeo is taken by Rossi, his buyer, to his house, where he will start a new life.

While working one day, Romeo falls from a chimney and breaks his leg. Professor Casella agrees to have him at his place until his leg heals. So that means that Romeo and Bianca will spend Christmas together. Romeo challenges to read Alfredo's favorite book, Moby-Dick, while his leg heals. The professor interests them both in many subjects, and Bianca begins to see Professor Casella as a father. They want to thank Professor Casella for his kindness, so they prepare a special show in Christmass Eve.