The Cupcake Caper is a Sesame Street book recorded for the Big Bird StoryMagic toy in 1987. In the book, Big Bird is charged with solving a mystery: Cookie Monster claims that somebody stole his brand new box of cupcakes, and Oscar has the empty box in his can. Big Bird is so confident that he can get to the bottom of it, that he promises to buy Cookie a new box if he can't find them. In the end, it is left to the listener to conclude that Cookie Monster ate them all himself! Big Bird never quite gets to this conclusion. It is a classic example of empowering the kids by letting them feel just a little bit smarter than the characters. .