Book excerpt: Laureth Peak's father has taught her to look for recurring events, patterns, and numbers--a skill at which she's remarkably talented. Her secret: She is blind. But when her father goes missing, Laureth and her 7-year-old brother Benjamin are thrust into a mystery that takes them to New York City where surviving will take all her skill at spotting the amazing, shocking, and sometimes dangerous connections in a world full of darkness. Marcus Sedgwick's She Is Not Invisible is an intricate puzzle of a novel that sheds a light on the delicate ties that bind people to each other. This title has Common Core connections.