At Thebes, when Capaneus was killed by Zeus' thunderbolt, Adrastus, and the rest of the Argive army fled, but "Adrastus alone was saved by his horse Arion".Apollodorus, 3.6.7–8. When Creon forbade the burial of the Argive dead, Arastus having "fled to Athens and took refuge at the altar of Mercy, and laying on it the suppliant's bough he prayed that they would bury the dead", and Theseus and the Athenians captured Thebes and recovered the dead.Apollodorus, 3.7.1.
at thebes when capaneus was killed by zeus' thunderbolt adrastus and the rest of the argive army fled but "adrastus alone was saved by his horse arion"apollodorus 367–8 when creon forbade the burial of the argive dead arastus having "fled to athens and took refuge at the altar of mercy and laying on it the suppliant's bough he prayed that they would bury the dead" and theseus and the athenians captured thebes and recovered the deadapollodorus 371