It was toward the end of an eight-thousand-mile road trip across America, in 2015, that the Dutch photographer Robin de Puy, riding her Harley-Davidson through the dry expanses of Ely, Nevada, discovered the subject destined to define her adventure: a skinny youth of fifteen, who flashed by, in the night, on a child’s bicycle. De Puy managed to stop him. Later, with wonder, she recalled the encounter in her diary: “Fragile-looking boy, striking face, big ears—a puppy, a golden retriever waiting for the ball to be thrown, (too) naive. ‘Can I photograph you?’ ” He consented, and posed for a picture, though de Puy neglected to mention that he was allowed to blink. Her model stared straight into the lens, unflinching, until tears dripped toward his lips.