Ominous violin music heralds the approach of Orphée (Entrance of Orphée and Public Opinion), but Jupiter has a plan, and promises to keep Eurydice away from her husband. As with the standard myth, Orphée must not look back, or he will lose Eurydice forever ("Ne regarde pas en arrière!"). Public Opinion keeps a close eye on him, to keep him from cheating, but Jupiter throws a lightning bolt, making him jump and look back, Eurydice vanishes. Amid the ensuing turmoil, Jupiter proclaims that she will henceforth belong to the god Bacchus and become one of his priestesses. Public Opinion is not pleased, but Pluton has had enough of Eurydice, Orphée is free of her, and all ends happily.