There he had well-nigh reached his journey's end, and his heart beat fast as he mingled with the band of pilgrims, each bound on his different quest to the god of Light and Truth, golden-haired Apollo, the mightiest of the sons of Zeus and the slayer of Pytho, the famous dragon. At Delphi is his shrine and dwelling-place, and there within his temple stands the sacred stone which fell from heaven and marks the centre of the earth. A great gulf yawns beneath, a mighty fissure going deep down into the bowels of the earth to the regions of the dead and the land of endless night; and deadly fumes rise up and noxious mists and vapours, so that the Pythian priestess, who sits above on her brazen tripod, is driven to frenzy by their power. Then it is that she hears the voice of Apollo, and her eyes are opened to see what no mortal can see, and her ears to hear the secrets of the gods and Fate. Those things which Apollo bids her she chants to the pilgrims in mystic verse, which only the wise can interpret aright. So from north and south and east and west men flocked to hear her prophecies, and the fame of Apollo's shrine went out through every land--from Ocean's stream and the Pillars of Heracles to the far Ionian shore and Euphrates, the mighty river of the East. OEdipus drew near to the sacred place and made due sacrifice, and washed in the great stone basin, and put away all uncleanness from his heart, and went through the portals of rock to the awful shrine within, where the undying fire burns night and day and the sacred laurel stands. And he put his question to the god and waited for an answer. Through the dim darkness of the shrine he saw the priestess on her tripod, veiled in a mist of incense and vapour, and as the power of the god came upon her she beheld the things of the future and the hidden secrets of Fate. And she raised her hand towards OEdipus, and with pale lips spoke the words of doom, "OEdipus, ill-fated, thine own sire shalt thou slay." As she spoke the words his head swam round like a whirlpool, and his heart seemed turned to stone; then, with a loud and bitter cry, he rushed from the temple, through the thronging crowd of pilgrims down into the Sacred Way, and the people moved out of his path like shadows. Blindly he sped along the stony road, down through the pass to a place where three roads meet, and he shuddered as he crossed them; for Fear laid her cold hand upon his heart and filled it with a wild, unreasoning dread, and branded the image of that awful spot upon his brain so that he could never forget it. On every side the mountains frowned down upon him, and seemed to echo to and fro the doom which the priestess had spoken. Straight forward he went like some hunted thing, turning neither to right nor left, till he came to a narrow path, where he met an old man in a chariot drawn by mules, with his trusty servants round him. "Ho! there, thou madman!" they shouted; "stand by and let the chariot pass."