The fifteenth volume in the Young Cam Jansen Easy-to-Read series takes place on the 100th day of school. A new student joins Cam's class just in time for the celebration: a "Letter P" party featuring pretzels, popcorn, and pizza. When the children go to collect their pizzas from the kitchen, they find only an empty box, but Cam soon deduces where the food must be. Colorful, small-scale line-and-wash illustrations brighten the pages of this entertaining, if  not particularly exciting, book. Beginning readers may enjoy testing their memories using picture-related questions in the appended "Cam Jansen Memory Game."

Cam's class celebrates the hundredth day of school with a "Letter P Party." All their snacks fit the theme: popcorn, pretzels, pineapple juice. When the piece de resistance--pizza!--goes missing, Cam puts her detective skills to good use. Plenty of humor and lots of cheerful spot- and half-page illustrations round out the easy-to-read (and not too difficult to solve) mystery.