Clash of the Secret Code Clubs

Cody, Quinn, Luke, M.E., and Mika are the Code Busters—clever clue hunters with a passion for puzzles.
They are ready to prove they are the best at solving codes after Matt the Brat forms his own club. The teachers put on a scavenger hunt throughout the school, and the group that can complete it first wins. But after beginning the hunt, the teachers start disappearing. Will the Code Busters be able to complete the scavenger hunt before Matt the Brat? And can they figure out the mystery of where the teachers have gone?
Can you crack the code? Test your brain with the Code Busters to see if you have the right stuff to be an ace detective. Answers are in the back, if you ever get stuck.