son of H?rin of Dor-l?min.
Then Morwen was distraught, and refusing the counsel of Melian she rode forth alone into the wild to seek her son, or some true tidings of him. Thingol therefore sent Mablung after her, with many hardy march-wards, to find her and guard her, and to learn what news they might; but Nienor was bidden to remain behind. Yet the fearlessness of her house was hers; and in an evil hour, in hope that Morwen would return when she saw that her daughter would go with her into peril, Nienor disguised herself as one of Thingol's people, and went with that ill-fated riding.
They came upon Morwen by the banks of Sirion, and Mablung besought her to return to Menegroth; but she was fey, and would not be persuaded. Then also the coming of Nienor was revealed, and despite Morwen's command she would not go back; and Mablung perforce brought them to the hidden ferries at the Meres of Twilight, and they passed over Sirion. And after three days' journeying they came to Amon Ethir, the Hill of Spies, that long ago Felagund had caused to be raised with great labour, a league before the doors of Nargothrond. There Mablung set a guard of riders about Morwen and her daughter, and forbade them to go further. But he, seeing from the hill no sign of any enemy, went down with his scouts to the Narog, as stealthily as they could go.
But Glaurung was aware of all that they did, and he came forth in heat of wrath, and lay into the river; and a vast vapour and foul reek went up, in which Mablung and his company were blinded and lost Then Glaurung passed east over Narog.
Seeing the onset of the dragon the guards upon Amon Ethir sought to lead Morwen and Nienor away, and fly with them with all speed back eastwards; but the wind bore the blank mists upon them, and their horses were maddened by the dragon-stench, and were ungovernable, and ran this way and that, so that some were dashed against trees and were slain, and others were borne far away. Thus the ladies were lost, and of Morwen indeed no sure tidings came ever to Doriath after. But Nienor, being thrown by her steed, yet unhurt, made her way back to Amon Ethir, there to await Mablung, and came thus above the reek into the sunlight; and looking westward she stared straight into the eyes of Glaurung, whose head lay upon the hill-top.
Her will strove with him for a while, but he put forth his power, and having learned who she was he constrained her to gaze into his eyes, and he laid a spell of utter darkness and forgetfulness upon her, so that she could remember nothing that had ever befallen her, nor her own name, nor the name of any other thing; and for many days she could neither hear, nor see, nor stir by her own will. Then Glaurung left her standing alone upon Amon Ethir, and went back to Nargothrond.
Now Mablung, who greatly daring had explored the halls of Felagund when Glaurung left them, fled from them at the approach of the dragon, and returned to Amon Ethir. The sun sank and night fell as he climbed the hill, and he found none there save Nienor, standing alone under the stars as an image of stone. No word she spoke or heard, but would follow, if he took up her hand. Therefore in great grief he led her away, though it seemed to him vain; for they were both like to perish, succourless in the wild.
But they were found by three of Mablung's companions, and slowly they journeyed northward and eastward towards the fences of the land of Doriath beyond Sirion, and the guarded bridge nigh to the inflowing of Esgalduin. Slowly the strength of Nienor returned as they drew nearer to Doriath; but still she could not speak or hear, and walked blindly as she was led. But even as they drew near the fences at last she closed her staring eyes, and would sleep; and they laid her down, and rested also, unheedfully, for they were utterly outworn. There they were assailed by an Orc-band, such as now roamed often as nigh the fences of Doriath as they dared. But Nienor in that hour recovered hearing and sight, and being awakened by the cries of the Orcs she sprang up in terror, and fled ere they could