When I was a child, I first thought that these shades might be malevolent spirits who fostered evil in those people around whom they swarmed. I've since discovered that many human beings need no supernatural mentoring to commit acts of savagery; some people are devils in their own right, their telltale horns having grown inward to facilitate their disguise.
Dean Koontz, Odd Thomas
bodachs, darkness, evil, humanity, supernatural