He must have been handsome when he was alive and was handsome still, although made monstrous by his pallor and her awareness of what he was. His mouth looked soft, his cheekbones as sharp as blades, and his jaw curved, giving him an off-kilter beauty. His black hair a mad forest of dirty curls.
Tana would sit near the door to the basement with fingers in her ears, tears and snot running down her face as she cried and cried and cried. And little Pearl would toddle up, crying, too. They cried while they ate their cereal, cried while they watched cartoons, and cried themselves to sleep at night, huddled together in Tana's little bed. 'Make her stop' Pearl said, but Tana couldn't.
Demons are a very human creation. You look for ways to explain evil, and instead of seeing it in yourselves, you offload the responsibility onto monsters. The monstrous exists in the mirror, not in the sulfurous depths of some fantasy world.