David informs Mrs. Malaprop, Lydia, Julia, and Sir Anthony of the dueling, and they all rush off to stop it. Sir Lucius explains the cause of his challenge, but Lydia denies any connection to him, and admits her love for Jack. Mrs. Malaprop announces that she is Delia, but Sir Lucius recoils in horror, realising that he has been hoaxed. Sir Anthony consoles Mrs. Malaprop, Julia is reconciled to Faulkland, and Acres invites everyone to a party.