Then she raised her shuttle and struck Arachne three times on the head. […] But at the entrance to Hades, there was a fierce, horrible dog, with three enormous heads, three pairs of fiery eyes, and three mouths, bristling with ugly fangs. […] With a cry of anger the three sisters darted in the direction from which the voice came. […] But Jason was not to be so easily discouraged, and he asked the king to tell him what the three tasks were. […] When you have succeeded in doing these three things, you may take the Golden Fleece back with you to Greece.”