The 'Iphigeneia in Aulis'
He does not deceive them for long. Achilles appears, demanding reasons for the delay in sailing; his men insist on going forward or going home.! But he meets Clytemnestra instead of Agamemnon, and the secret is soon out. He gallantly undertakes the defence of Iphigeneia, but this comes to nothing. Iphigeneia, who has at first tearfully protested, changes her mind as suddenly as Menelaus did, and goes willingly to the altar, where Artemis makes the miraculous substitution of a kid.