An explosive confrontation opens the episode when Isabel steps between Quin and the household after being struck with a bottle while defending her younger sister, Flora. The grandmother publicly scolds Isabel, calls her ungrateful, and announces she is banished from the Lopez family. Isabel tells Quin and Mrs. Carver "goodbye forever" and moves to leave. Panic erupts when someone reveals Isabel's departure would expose stolen sheet music and could be treated as fleeing to avoid punishment. The household splits as Isabel prepares to go, her exit threatening exposure and immediate legal consequences.