Choephori, also called The Libation Bearers, is the second play of the Oresteia. Years after the king's return from Troy, his son Orestes comes back to Argos in secret, and he meets his sister Electra at their father's tomb. Together they weigh a terrible duty laid on them by grief, loyalty and divine command. A chorus of household women carries offerings to the grave. The play explores family loyalty, vengeance and the moral burden of obeying an oracle.