When we speak of grey as a location, placing a thing into a grey area, the color represents territory where the definite becomes lost. Grey lets us know that the truth is not always clear; even the most well-known paths can turn strange when a low grey cloud of fog rolls in. Grey is an act of subtraction, the loss of sun, joy, and color. Regrets are the natural property of grey hairs, said Dickens. Since grey is a symbol for the loss of youth, it seems a fitting issue for a theme about youth who are lost.
Getting lost is one of the most widely used narrative vehicles of all time. Once characters become lost, they can stumble upon anything—it’s a light-speed bullet train between credibility and suspension of disbelief. Falling down a rabbit hole or stepping off the trail in a labyrinthine wood can transport a character to another world entirely in a manner of seconds. When a protagonist starts to get lost, something exciting is about to happen.