In the books, Túrin was a Man of the First Age of Middle-earth, whose family had been cursed by the ultimate evil being of the legendarium, Morgoth. In course of his unsuccessful attempts to defy the curse, Túrin brought ruin upon several Mannish and Elven strongholds as well as upon himself and his sister Niënor Níniel. Their history was recorded in the Tale of the Children of Húrin or Narn i Chîn Húrin, which was claimed by Tolkien to be the ultimate source of the published writings.