Battle at Cabed-en-Aras

After the Fall of Nargothrond, Glaurung ruled from the area for nearly 5 years and became known as the 'dragon-king.' Glaurung issued forth having learned that Túrin was near.

As Glaurung approached Cabed-en-Aras, Túrin layed an ambush for him and slew him but lost Hunthor in the process.

As Glaurung died, and Túrin remained unconscious, Nienor stooped over Túrin and began to heal him of his wounds. Glaurung awoke and revealed to her that Túrin was in fact her brother.

Realizing that she carried her brother's unborn child, she fled and cast herself into a ravine. This was witnessed by Brandir who later killed Dorlas for abandoning Túrin at this battle.