 Wicked Atreus gleefully congratulates himself on his cruel revenge, and reveals to his brother Thyestes the dreadful feast which he had eaten, and the serving up of the blood of his sons.An aspect of Thyestes that is not well understood is the existence of the Chorus, which, following Greek practice, appears after the first Act.This would explain why they are unaware of what happened with Tantalus and the Fury.