The Case of the Missing Donut
Picture book about honesty and responsibility. But the kids will think it's about irresistible donuts and a young "sheriff" and his deputy (dog) who can't resist them. Wonderful ending -- wonderful double meaning of "case closed" at the end. Which case is closed? Where the missing donut went? Or how everyone suspected (or knew) just where the donut went?
Source: http://www.examiner.com/review/the-case-of-the-missing-donut-a-picture-book-with-a-tasty-problem