When Heracles reached Erytheia, no sooner had he landed than he was confronted by the two-headed dog, Orthrus. With one huge blow from his olive-wood club, Heracles killed the watchdog. Eurytion the herdsman came to assist Orthrus, but Heracles dealt with him the same way. In the Aeneid, Vergil may have based the triple-souled figure of Erulus, king of Praeneste, on Geryon. The Herculean Sarcophagus of Genzano features a three headed representation of Geryon