When Louis returns to the Red Rock Lakes, he falls in love with a young swan, Serena, but cannot attract her attention. Louis's father is aware that trumpeter swans are named after the human musical instrument and becomes determined to acquire a trumpet as a substitute "voice" for Louis. The cob crashes through the window of a music store in Billings, Montana and steals a brass trumpet on a cord. By the time Louis learns to effectively play the trumpet, Serena has migrated north. Instead of accompanying his family north where he might have to face Serena again, Louis visits Sam on his ranch and explains that he feels guilty about the stolen trumpet. Sam suggests that Louis should get a job so he can pay the store for the trumpet and the damaged window. He helps Louis find a position as camp bugler at Camp Kookooskoos, the boys' camp Sam attends. Louis convinces Sam to split one of his webbed feet with a razor blade, making "fingers" so that he can play more notes.