Sacer. Discolpati!
Ramfis. Egli tace.
Tutti. Traditor!
Ramphis. (In the subterranean hall.) Rhadames, Rhadames, thou didst reveal
The country's secrets to the foreigner....
Priests. Defend thyself!
Ramphis. He is silent.
All. Traitor!
The dramatically condemnatory "Traditor!" is a death knell for her lover in the ears of Amneris. And after each accusation, silence by Rhadames, and cry by the priests of "Traitor!" Amneris realizes only too well that his approaching doom is to be entombed alive! Her revulsions of feeling from hatred to love and despair find vent in highly dramatic musical phrases. In fact Amneris dominates this scene, which is one of the most powerful passages for mezzo-soprano in all opera.
Scene 2. This is the famous double scene. The stage setting is divided into two floors. The upper floor represents the interior of the Temple of Vulcan, resplendent with light and gold; the lower floor a subterranean hall and long rows of arcades which are lost in the darkness. A colossal statue of Osiris, with the hands crossed, sustains the pilasters of the vault.
In the temple Amneris and the priestesses kneel in prayer. And Rhadames? Immured in the dungeon and, as he thought, to perish alone, a form slowly takes shape in the darkness, and his own name, uttered by the tender accents of a familiar voice, falls upon his ear. It is Aïda. Anticipating the death to which he will be sentenced, she has secretly made her way into the dungeon before his trial and there hidden herself to find reunion with him in death. And so, while in the temple above them the unhappy Amneris kneels and implores the gods to vouchsafe Heaven to him whose death she has compassed, Rhadames and Aïda, blissful in their mutual sacrifice, await the end.