Ungoliant was an evil spirit in a form that greatly resembled a massive Spider who dwelt in Avathar prior to the First Age.
Ungoliant’s origins are shrouded in mystery. It is thought that she may have been one of the Maiar, or a lesser spirit, whom Melkor corrupted long ago, but she is not listed among the Ainur. It is also said that she came from the darkness above the skies of Arda, leading some to believe that she may be an incarnation of darkness or emptiness itself. What is known is that during the Age of the Trees she had disowned Melkor and lived independently in Avathar.
A sister they had, Galadriel, most beautiful of all the house of Finwë; her hair was lit with gold as though it had caught in a mesh the radiance of Laurelin.
Never since have the Ainur made any music like to this music, though it has been said that a greater still shall be made before Ilúvatar by the choirs of the Ainur and the Children of Ilúvatar after the end of days.
But wandering in the summer in the woods of Neldoreth he came upon Lúthien, daughter of Thingol and Melian, at a time of evening under moonrise, as she danced upon the unfading grass in the glades beside Esgalduin. Then all memory of his pain departed from him, and he fell into an enchantment; for Lúthien was the most beautiful of all the Children of Ilúvatar. Blue was her raiment as the unclouded heaven, but her eyes were grey as the starlit evening; her mantle was sewn with golden flowers, but her hair was dark as the shadows of twilight. As the light upon the leaves of trees, as the voice of clear waters, as the stars above the mists of the world, such was her glory and her loveliness; and in her face was a shining light.
Dor-lómin was a country in the south-western part of Hithlum, bordered in the east by the Mountains of Mithrim, and in the north by the river which formed the Rainbow Cleft known as Annon-in-Gelydh, or “Gate of the Noldor”. It was the birthplace of Túrin son of Húrin and Morwen. There is also a mountain pass in its south unknown to the Enemy.