Unlight

Unlight , also known as the Cloud of Ungoliant , was a creation of Ungoliant . It is described as a vast darkness that no light can escape or penetrate. As Ungoliant devoured the Light of the Trees , she brought forth the Unlight, and "it seemed not lack, but a thing with being of its own, that made by malice out of Light had the power to pierce the eye, to enter the heart and mind and strangle the very will".