The Argo is the famous ship used by the heroes who became known as the Argonauts on their mission to find the Golden Fleece. The Argo was owned by Yvenna's uncle (Young Hercules). Ten years later, when the Golden Fleece was stolen from Argos, the Argonauts reunited for a second expedition to retrieve it. They once again sailed on the Argo, though the ship had been refitted in the intervening years to feature a golden ram figurehead (HTLJ "Once a Hero").