The young lovers' rapturous duet ("Mit Ihren Augen voll Tränen") is soon interrupted by Valzacchi and Annina, who surprise them and call for Ochs. Octavian challenges the Baron to a duel. Ochs runs forward, scratches his arm on the point of Octavian's drawn sword, and screams so that Faninal and the rest of the household come rushing in. Sophie begs her father to call off the wedding, to no avail: Octavian is asked to leave, and Sophie is sent to her room. Ochs is left on the divan, his arm in a sling, nursing a bottle of port and fantasies of revenge against Octavian. But Annina brings him something that raises his spirits much more quickly: a letter signed by "Mariandel," the "chambermaid" from Act 1, asking for a tryst. At this, Ochs forgets his sling and waltzes across the stage, ignoring Annina's hints for a tip – and missing her quiet promise to get even ("Da lieg' ich!").