To whatever end. Where is the horse and the rider? Where is the horn that was blowing? They have passed like rain on the mountains. Like wind in the meadow. The days have gone down in the west. Behind the hills, into shadow. How did it come to this?
J. R. R. TolkienBut Sauron was not of mortal flesh, and though he was robbed now of that shape in which had wrought so great an evil, so that he could never again appear fair to the eyes of Men, yet his spirit arose out of the deep and passed as a shadow and a black wind over the sea, and came back to Middle-earth and to Mordor that was his home. There he took up again his great Ring in Barad-dur, and dwelt there, dark and silent, until he wrought himself a new guise, an image of malice and hatred made visible; and the Eye of Sauron the Terrible few could endure.
J. R. R. Tolkien