When the light of the morning came the Argo was very near to the Mountain Caucasus. The voyagers looked in awe upon its black crags. They saw the great vulture circling over a high rock, and from beneath where the vulture circled they heard a weary cry. Then Heracles, who all night had stood by the mast, cried out to the Argonauts to bring the ship near to a landing place. But Jason would not have them go near; fear of the wrath of Zeus was strong upon him; rather, he bade the Argonauts put all their strength into their rowing, and draw far off from that forbidden mountain. Heracles, not heeding what Jason ordered, declared that it was his purpose to make his way up to the black crag, and, with his shield and his sword in his hands, slay the vulture that preyed upon the liver of Prometheu

