Cracking the code isn’t all it’s cracked up to be in this scavenger-hunt adventure from a Coretta Scott King Honor–winning author.Chester Keene takes great comfort in his routines. After school Monday to Thursday is bowling, and Friday, the best of days, is laser tag! But most special of all is when Chester gets secret spy messages from his dad, who is always on covert government assignments, which is why Chester has never met him.Then, one day at lunch, Chester’s classmate S