Robert E. Howard 
A Witch Shall Be Born 

"Taramis, queen of Khauran, awakened from a dream-haunted slumber to a silence that seemed more like the stillness of nighted catacombs than the normal quiet of a sleeping place. She lay staring into the darkness, wondering why the candles in their golden candelabra had gone out. A flecking of stars marked a gold-barred casement that lent no illumination to the interior of the chamber. But as Taramis lay there, she became aware of a spot of radiance glowing in the darkness before her. She watched, puzzled. It grew and its intensity deepened as it expanded, a widening disk of lurid light hovering against the dark velvet hangings of the opposite wall…"