The Picture Clue books are based on the traditional "rebus Reader"--Using a picture as a tool for learning a word. On the sample spread, you can see where a picture is substituted for a word. This gives a young reader a sense of pride that she is "reading" the story. All pictures and vocabulary are on flashcards at the end of the book. Scooby and the gang are at the North Pole helping Santa get ready for Christmas. Scooby and Shaggy helped bake cookies, but now they're all gone! Who took the cookies? It looks like there's a mystery to solve!