Sancho and Quixote ready themselves to finally take leave of the castle. The duchess gives Sancho the letters his wife has sent, and he is heartbroken that she will have to be disappointed. Altisidora suddenly begins singing a mocking song to the Don, accusing him of spurning her and also of stealing three of her handkerchiefs and two of her garters. The Don asks Sancho if he has the kerchiefs. He says that he was given them, but he does not know the whereabouts of the garters. The duke joins in on the mocking, and eventually they are wished a good journey. Altisidora suddenly remembers that she has the garters on, and they leave for Saragossa.