In this Age, as is elsewhere told, Sauron arose again in Middle-earth, and grew, and turned back to the evil in which he was nurtured by Morgoth, becoming mighty in his service. Already in the days of Tar-Minastir, the eleventh King of Númenor, he had fortified the land of Mordor and had built there the Tower of Barad-dûr, and thereafter he strove ever for the dominion of Middle-earth, to become a king over all kings and as a god unto Men.
