The Black Man is a euphemism for Satan in this book. Hester considers the scarlet letter A to be the Black Man’s mark, and Pearl wonders aloud if the Black Man left his brand on Dimmesdale’s heart. Our narrator loves to compare Chillingworth to Satan as well. By invoking Satan, our narrator raises the question of whether humans are innately good or evil. A favorite pastime of the Black Man is to hang out in the woods and lure the locals to come hang out with him and sign their names in his book (with their own blood). Mistress Hibbons knows the Black Man well, apparently.