Letterbox Lil is a very nosy little girl, who likes to peek at all the strange people in her neighborhood - from Long-Legged Peter, a sly Spider-Eater to the decidedly dotty Professor Biscotti. But Lil isn't the only one playing I-Spy, and one day she gets a shock that persuades her to give up letterbox peeking for good. This is a darkly funny and truly unique picture book with a surprise ending.