In The Libation Bearers, the second play of Aeschylus' Oresteia trilogy, many years after the murder of Agamemnon, his son Orestes returns to Argos with his cousin Pylades to exact vengeance on Clytaemnestra, as an order from Apollo, for killing Agamemnon. At Agamemnon's grave, Orestes reunites with his sister Electra who was offering libations to Agamemnon in an attempt to stop Clytaemnestra's bad dreams. Shortly after the reunion, both Orestes and Electra, influenced by the Chorus, devise a plan to kill both Clytaemnestra and Aegisthus.