What is his reason? what vengeful fiend impels him?Old manOracles, at least so Calchas says, in order that the army may start—ClytemnestraWhere? Alas for me, and for the one her father is going to kill!Old manTo the halls of Dardanus, that Menelaus may recover Helen.ClytemnestraSo Helen’s return then was fated to affect Iphigenia?