Deianeira and Nessus
Heracles and Deianeira came to the river Euenus in Aetolia, across which the centaur Nessus used to carry travelers for a small sum of money. Heracles himself forded the river, and gave Deianeira to Nessus to carry her across. Nessus attempted to violate or abduct her: Heracles heard her screaming, and as the centaur brought her to the other side, Heracles shot an arrow into his heart.
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