Antonia and Sebastian, the twin brother of Viola) arrive in Illyria.
Malvolio, given a ring by Olivia, tries to return it to Cesario.
Feste drops by to play music for Toby and Andrew.
Maria interrupts the noise, but Toby sings to her: "Tilly Vally, Lady, Lady."
Malvolio interrupts the revels by demanding to know if they make an alehouse of his lady's house.
At the Count Orsino's, Feste and Cesario perform a song: "Come Away, Death."