"Then he turned and looked at the man and an unpleasant sensation that he could not place came over him. The person who had picked him up was a pale, lean, old-looking young man with deep hollows under his cheekbones. He had on a lavender shirt and a thin black suit and a panama hat. His lips were as white as the cigarette that hung limply from one side of his mouth. His eyes were the same color as his shirt and were ringed with heavy black lashes. A lock of yellow hair fell across his forehead from under his pushed-back hat."
The best depiction of the Devil-in-the-flesh I've ever read. You very nearly could smell the sulfur.
The writer is Mary Flannery O'Connor.
The book's title is The Violent Bear it Away, taken from Mattew 11:12, "FROM THE DAYS OF JOHN THE BAPTIST UNTIL NOW, THE KINGDOM OF HEAVEN SUFFERETH VIOLENCE, AND THE VIOLENT BEAR IT AWAY."