Orphée's arrival, with Public Opinion at his side, has the gods on their best behaviour ("Il approche! Il s'avance"). Orphée obeys Public Opinion and pretends to be pining for Eurydice: he illustrates his supposed pain with a snatch of "Che farò senza Euridice" from Gluck's "Orfeo". Pluton is worried he will be forced to give Eurydice back; Jupiter announces that he is going to the Underworld to sort everything out. The other gods beg to come with him, he consents, and mass celebrations break out at this holiday ("Gloire! gloire à Jupiter ... Partons, partons").