Pale Night

Pale Night was an obyrith demon lord of unimaginable age, often referred to as the Mother of Demons, to whom the tanar'ri appeared as mere children. An unknowable enigma shrouded in mystery, to peer beyond her veil was to witness an indescribable horror so great that it was rejected by reality itself.

Do not speak to the White Lady. Not one word.
— The wise advice of a disguised Graz'zt

Description

Pale Night appeared in a shimmer of strange light, as a diaphanous, white sheet that billowed in a non-existent wind, yet never enough to reveal what lurked beneath it. On closer inspection, the contours of the robe suggested a comely, feminine form, like that of a lithe elf or human. The phantasmal figure glided through the air, hazy and terrifying yet seductive in shape. When she spoke, her voice was low and almost inaudible, but her singing was apparently enrapturing and her robe moved fluidly, easily indicating her gestures. Besides the cloak, only white, gossamer hairs concealed her incorporeal visage, preventing onlookers from glimpsing the true, maddening wrongness of her existence.

Personality

Pale Night was no less malevolent and sadistic than the other demons of the Abyss, although luckily for many she was also utterly capricious. Sometimes she decided to murder any trespassers in her domain and put them on display, but at others she gave them tasks or simply allowed them to leave. Her actions and decisions were difficult to decipher since she rarely ever spoke, even to her own servants, and she could barely be deigned to associate with other Demon Lords. For a mortal to even attempt to speak to her could be considered a grievous offense worthy of death.