Having cracked all the codes and put all the clues together, the three friends have figured out what the school staff has been hiding, and now they join in to help. As the end of the school year nears, pressure mounts to bring the secret plan to fruition, but something threatens to derail everything. Will Max, Liz, and Chen be able to solve this one last problem in time?

This decodable chapter book lets upper elementary readers build fluency with different syllable types and gain word knowledge while unraveling this page-turning mystery. The series includes accessible, dyslexia-friendly font and takes readers through a systematic sequence of skills.