" The guy at the cash register is a redhead in his thirties with freckles and a two-inch-diameter birthmark, as pink as uncooked salmon, on his pale forehead. The mark is uncannily like the image of a fetus curled in a womb, as if a gestating twin had died early in the mother’s pregnancy and left its fossilized image on the surviving brother’s brow. "

― Dean Koontz , Intensity