§ Of Maeglin The Silmarillion

In the telling of these tales there was awakened in Aredhel a desire to see her own kin again, and she marvelled that she had grown weary of the light of Gondolin, and the fountains in the sun, and the green sward of Tumladen under the windy skies of spring; moreover she was often alone in the shadows when both her son and her husband were away. Of these tales also grew the first quarrels of Maeglin and Eöl. For by no means would his mother reveal to Maeglin where Turgon dwelt, nor by what means one might come thither, and he bided his time, trusting yet to wheedle the secret from her, or perhaps to read her unguarded mind; but ere that could be done he desired to look on the Noldor and speak with the sons of Fëanor, his kin, that dwelt not far away. But when he declared his purpose to Eöl, his father was wrathful. 'You are of the house of Eöl, Maeglin, my son,' he said, 'and not of the Golodhrim. All this land is the land of the Teleri, and I will not deal nor have my son deal with the slayers of our kin, the invaders and usurpers of our homes. In this you shall obey me, or I will set you in bonds.' And Maeglin did not answer, but was cold and silent, and went abroad no more with Eöl; and Eöl mistrusted him.