The Odyssey
What did the seer Calchas say needed to be done for the army to set sail?
What needed to be done?
What needed to be done?
The seer, Calchas, said that in order for the army to successfully set sail, Agamemnon must sacrifice his daughter Iphigenia. This sacrifice was required of him as a result of his neglect in sacrificing the golden sheep, which was replaced with an ordinary one, something that had angered Artemis.