Can Detective Conan crack the case...while trapped in a kid's body? 
When ace high school detective Jimmy Kudo is fed a mysterious substance by a pair of nefarious men in black--poof! He is physically transformed into a first grader. Until Jimmy can find a cure for his miniature malady, he takes on the pseudonym Conan Edogawa and continues to solve all the cases that come his way. 
THE SIGN OF THREE 
When a tabloid publisher is murdered, the hardest part of the case may be finding someone who doesn't want him dead. A cold case heats up when a body is found with the character for "death" written nearby. And when the Junior Detective League stumbles on a crime while camping, Anita risks exposing her secret identity. 
As he solves these cases, Conan keeps running into three suspicious characters: overly friendly neighbor Subaru Okiya, eager young private eye Toru Amuro and teen detective Masumi Sera... Which of them is the Man (or Woman) in Black codenamed Bourbon?