Aida
As Amneris goes to pray before her wedding, the priests chant prayers.  Aida wonders why Radames wants to meet her.  Amonasro goes to Aida and tells her she must find out from her lover, Radames, which way the Egyptian army are going to march to fight the Ethiopians.  Aida refuses to do this at first, but her father says that, if she doesn’t  and her people are killed,  it will be her fault.  She changes her mind.