 She laments the sudden absence of Actaeon, her current love ("Quand Diane descend dans la plaine"); to her indignation, Jupiter tells her he has turned Actaeon into a stag to protect her reputation.Mercury arrives and reports that he has visited the Underworld, to which Pluton has just returned with a beautiful woman.Pluton enters, and is taken to task by Jupiter for his scandalous private life.