In This Series Opener, Koko Dodo The Cookie Chef Has A Big Problem. Today Is The Day Of The Royal Cookie Contest, And Someone Has Stolen His Top-secret Fudge Sauce! Luckily, A Spy Enters The Scene Just In Time (or Rather, Crashes In On Her Roller Skates): Didi Dodo! This Might Be Didi’s First Case Ever, But She Has A Daring Plan To Help Koko. Koko Would Prefer A Safe, Simple, Sure-to-work Plan, But Without Another Option, He And The Amateur Sleuth Take Off On A Wacky Caper Full Of High-speed Chases And Big Belly Laughs That Could Only Come From The Mind Of The Inimitable Tom Angleberger. Each Book In The Series Will Focus On A Food-related Mystery.