And sweep thee onward with the cloud-rack wild;][[187]]
Crossing the sea-surf till thou come at last
Unto Kisthene's Gorgoneian plains,
Where dwell the grey-haired virgin Phorkides,[[188]]
Three, swan-shaped, with one eye between them all
And but one tooth; whom nor the sun beholds
With radiant beams, nor yet the moon by night:
And near them are their wingèd sisters three,
The Gorgons, serpent-tressed, and hating men,
Whom mortal wight may not behold and live.