King Alonso and his entourage wander the island in search of Ferdinand. Gonzalo tries unsuccessfully to encourage hope in Alonso of Ferdinand’s survival. Then Ariel, invisible, charms asleep all but Antonio and Sebastian. Antonio seizes the occasion to persuade Sebastian to kill King Alonso and Gonzalo and take the throne of Naples. Ariel, invisible, returns to awake Gonzalo, who wakes the rest. They resume their search.