The House of Admetus: Eumelus, The Lost Trilogy of Plays by Agathon

This is the first play in the trilogy House of Admetus by Agathon. This covers the triumphant return of King Eumelus and his son, Admetus, from the Trojan War. During the welcoming feast, the younger son, Promachos, plans to kill his eldest brother with poison administered by his mother. When the plot is reveled and the mother and son capture, the King must decide the fate of his wife and son on their charge of treason. The King is torn by the decision since he deeply loves both his wife and son and cannot stand the idea of putting them to death.