Met : Aïda

Aida, an Ethiopian princess, is held captive in Egypt. Amneris, the king's daughter, considers her a rival because she is loved by Radamès, the leader of the armies. When the latter returns victorious from a campaign against Ethiopia, Aida is convinced that her father, King Amonasro, died in combat. But, disguised as a simple soldier, he survived and proposes to his daughter a plot to discover the military secrets of the Egyptians.