Then he took with him the helm full of dragon's teeth, and his spear for a goad, and forced those frantic beasts to draw the massive plow across the plain, and sowed his baneful seed as he went. All day long he drove his resisting team across the stony plain; and as the granite plowshare tore its way through the earth he cast the dragon's teeth among the upturned clods. And at length the evening fell, and he unloosed the yoke, and with smiting and shouting scared the bulls across the plain to their caves. Then he gladly returned to the _Argo_, plunged his helm into the river, and was about to slake his terrible thirst, when he turned to see the whole earth bristling with armed warriors, row on row of shields and spears and helms. The words of Medea came to his remembrance then, and ere he fell upon them he took up from the earth a great round boulder such as four strong men of to-day scarce could move, and flung it in their midst. Loudly the Colchians shouted, but speechless fear seized on their king when he saw the flight of that massive crag and beheld the earthborn slaying each other. And among them stood Jason, beautiful as a god, hewing them down with his sword, till not one was left alive. Then the night fell and Jason slept, for he knew that his task was accomplished. Æetes and his princes went silently back to their city, for the superhuman power of the hero inspired them with nameless fears. And in the palace Medea was smitten with terror, for she knew that it must come to the ears of the king her father, that by her arts Jason had been helped to victory, and she dreaded his vengeance. She knew not where to turn for aid but to Jason himself; so she veiled herself, and thrusting her secret drugs and poisons into her bosom, she fled in the darkness from her palace. Through the night she hastened, weeping piteously, torn between love and duty to her parents and her passion for the man her spells had helped, till she saw the gleam of the fire where the heroes were feasting on the river bank. And through the noise of their revelry and the ringing of their gay laughter a bitter cry was heard--a woman's cry. And the sons of Phrixus, her nephews, and Jason, her lover, knew her voice, and they hastily thrust out from the bank and rowed to the place where she stood, and Jason leaped to the bank beside her. Then Medea clung to his knees and besought him to carry her away lest her father's vengeance should fall heavy upon her. Therefore, before them all, he swore to take her to Greece and wed her there. Then she adjured them to go in haste, wasting no more precious hours in revelry, to fetch the Golden Fleece before Æetes came in pursuit of them. "Speed," she cried, "while darkness covers your deeds!"