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.

Conan and Sera venture into the woods to search for the Red Lady, a legendary murderer who may still be on the loose. Or could she be a ghost? And why was her latest victim found under a bushel of tomatoes?

Then Conan is certain that a romance novelist is guilty of murder, but his alibi is perfectly plotted. And Harley and the Junior Detective League track down a drug-trafficking ring using a code in an abandoned notebook!