The Odyssey 12.76–90

And in the midst of the cliff is a dim cave, turned to the West, toward Erebus, even where you shall steer your hollow ship, glorious Odysseus. Not even a man of might could shoot an arrow from the hollow ship so as to reach into that vaulted cave. Therein dwells Scylla, yelping terribly. Her voice is indeed but as the voice of a new-born whelp, but she herself is an evil monster, nor would anyone be glad at sight of her, no, not though it were a god that met her. Verily she has twelve feet, all misshapen,1 and six necks, exceeding long, and on each one an awful head, and therein three rows of teeth, thick and close, and full of black death. Up to her middle she is hidden in the hollow cave, but she holds her head out beyond the dread chasm,