"Eumenides" is the third play in the Oresteia trilogy written by the ancient Greek playwright Aeschylus. It follows the story of Orestes, who is pursued by the Furies after avenging his father's murder by killing his mother, Clytemnestra. The play explores themes of justice, guilt, and the transition from personal vengeance to a more organized legal system. In "Eumenides," Orestes seeks refuge at the temple of Apollo and is ultimately put on trial in Athens. The play introduces the Areopagus, a court that symbolizes the establishment of civic justice. The resolution of the trial leads to the transformation of the Furies into the Eumenides, representing a shift towards mercy and order in society.