" A younger version of himself stood with Luke, now both long-limbed and freckled with acne. Still smiling, but this time part of a foursome. Luke’s arm was slung around the slim teenage waist of a girl with baby-blonde hair. Falk’s hand hovered more cautiously over the shoulder of a second girl with long black hair and darker eyes. Falk could not believe that photo was being shown. He shot a look at Gerry Hadler, who was staring straight ahead, his jaw set. Falk felt the farmer next to him shift his weight and move a calculated half-step away. The penny had dropped for him, Falk thought. "
― Jane Harper , The Dry (Aaron Falk, #1)