Before the battle in Babylon, Alexander states that the lunar eclipse which some of his men thought was a bad omen means that "the Persian moon will be eclipsed by the Macedonian Sun" with which Aristander the seer agrees. After being defeated, Darius III flees to the Caspian Gates to build a new army, but his dispirited commanders kill him. In his will, Darius tells Alexander, "Take my daughter, Roxane, for your wife...that our worlds may become as one." Alexander then orders Persian lords who had committed regicide to be impaled upon stakes for their betrayal of their king.