Award-winning author David A. Adler delights with this mystery story for young sleuths. Cam Jansen and her friends are getting ready for the fifth-grade carnival. There are going to be many games and prizes and Cam hopes to do well at the trivia game because she has a photographic ("Click!") memory. But is there something strange going on over at the dime toss game? Christina Moore's lively narration will captivate young listeners.