Achlys

Achlys was the personification of the eternal night, or of the death mist that fell before the eyes preceding death and was the first created being which existed even before Chaos.

According to Hesiod, she was the personification of misery and sadness and as such she was represented on the shield of Heracles. She was shown as pale, emaciated, and was weeping, with chattering teeth, swollen knees, long nails on her fingers, bloody cheeks, and her shoulders thickly covered in dust.