Cam Jansen and the Graduation Day Mystery #31

The beloved elementary school sleuth Cam Jansen is back in her 31st mystery. Eric's father is finally graduating from college. But before the celebration can begin, a very special present from Grandpa Shelton disappears. Was it lost-or stolen. There's no way Cam will let a thief ruin the graduation celebration. She must use her photographic memory to track down the gift.