But when Húrin was gone from Menegroth, Thingol sat long in silence, gazing upon the great treasure that lay upon his knees; and it came into his mind that it should be remade, and in it should be set the Silmaril. For as the years passed Thingol's thought turned unceasingly to the jewel of Fëanor, and became bound to it, and he liked not to let it rest even behind the doors of his inmost treasury; and he was minded now to bear it with him always, waking and sleeping.
In those days the Dwarves still came on their journeys into Beleriand from their mansions in Ered Lindon, and passing over Gelion at Sam Athrad, the Ford of Stones, they travelled the ancient road to Doriath; for their skill in the working of metal and stone was very great, and there was much need of their craft in the halls of Menegroth. But they came now no longer in small parties as aforetime, but in great companies well armed for their protection in the perilous lands between Aros and Gelion; and they dwelt in Menegroth at such times in chambers and smithies set apart for them. At that very time great craftsmen of Nogrod were lately come into Doriath; and the King therefore summoning them declared his desire, that if their skill were great enough they should remake the Nauglamír, and in it set the Silmaril. Then the Dwarves looked upon the work of their fathers, and they beheld with wonder the shining jewel of Fëanor; and they were filled with a great lust to possess them, and carry them off to their far homes in the mountains. But they dissembled their mind, and consented to the task.
Long was their labour; and Thingol went down alone to their deep smithies, and sat ever among them as they worked. In time his desire was achieved, and the greatest of the works of Elves and Dwarves were brought together and made one; and its beauty was very great, for now the countless jewels of the Nauglamír did reflect and cast abroad in marvellous hues the light of the Silmaril amidmost. Then Thingol, being alone among them, made to take it up and clasp it about his neck; but the Dwarves in that moment withheld it from him, and demanded that he yield it up to them, saying: 'By what right does the Elvenking lay claim to the Nauglamír, that was made by our fathers for Finrod Felagund who is dead? It has come to him but by the hand of Húrin the Man of Dor-lómin, who took it as a thief out of the darkness of Nargothrond.' But Thingol perceived their hearts, and saw well that desiring the Silmaril they sought but a pretext and fair cloak for their true intent; and in his wrath and pride he gave no heed to his peril, but spoke to them in scorn, saying: 'How do ye of uncouth race dare to demand aught of me, Elu Thingol, Lord of Beleriand, whose life began by the waters of Cuiviénen years uncounted ere the fathers of the stunted people awoke?' And standing tall and proud among them he bade them with shameful words be gone unrequited out of Doriath.
Then the lust of the Dwarves was kindled to rage by the words of the King; and they rose up about him, and laid hands on him, and slew him as he stood. So died in the deep places of Menegroth Elwë Singollo, King of Doriath, who alone of all the Children of Ilúvatar was joined with one of the Ainur; and he who, alone of the Forsaken Elves, had seen the light of the Trees of Valinor, with his last sight gazed upon the Silmaril.
Then the Dwarves taking the Nauglamír passed out of Menegroth and fled eastwards through Region. But tidings went swiftly through the forest, and few of that company came over Aros, for they were pursued to the death as they sought the eastward road; and the Nauglamír was retaken, and brought back in bitter grief to Melian the Queen. Yet two there were of the slayers of Thingol who escaped from the pursuit on the eastern marches, and returned at last to their city far off in the Blue Mountains; and there in Nogrod they told somewhat of all that had befallen, saying that the Dwarves were slain in Doriath by command of the Elvenking, who thus would cheat them of their reward.
Then great was the wrath and lamentation of the Dwarves of Nogrod for the death of their kin and their great craftsmen, and they tore their beards, and wailed; and long they sat taking thought for vengeance. It is told that they asked aid from Belegost, but it was denied them, and the Dwarves of Belegost sought to dissuade them from their purpose; but their counsel was unavailing, and ere long a great host came forth from Nogrod, and crossing over Gelion marched westward through Beleriand.