Max, Liz, and Chen will never take their school lunch for granted again! When the daily food truck fails to deliver the fresh ingredients Miss Kintz needs to feed the hungry students, complete chaos erupts in the cafeteria. The lunch lady is completely frazzled, so Max, Liz, and Chen step up to help save the day. While working in the kitchen, the kids stumble upon another secret coded message. It looks like Miss Graph, the school librarian and the leader of the Code Breakers Club, is up to something highly suspicious. But what exactly is her big plan, and who else might be involved in the scheme? This thrilling decodable chapter book lets upper elementary readers solve a page turning mystery while building important reading skills. Follow the clues, crack the codes, and see if you can figure out the cafeteria secret before the lunch bell rings!