Case Closed, Volume 60: Grounds for Murder, Paperback/Gosho Aoyama

A precocious high school super sleuth trapped in a kid's body solves baffling crimes and mysteries while working on his toughest and most personal case--finding who put him in his miniature state. Jimmy Kudo, the son of a world-renowned mystery writer, is a high school detective who has cracked the most baffling of cases. One day while on a date with his childhood friend Rachel Moore, Jimmy observes a pair of men in black involved in some shady business. The men capture Jimmy and give him a poisonous substance to rub out their witness. But instead of killing him, it turns him into a little kidJimmy takes on the pseudonym Conan Edogawa and continues to solve all the difficult cases that come his way. All the while, he's looking for the men in black and the mysterious organization they're with in order to find a cure for his miniature malady. When a little boy is caught in a devastating fire, the Junior Detective League is on the caseConan suspects arson, but to decipher the clues his pint-size client left behind he'll have to think like a real first-grader Then Conan tracks the Hammer Man, an urban legend who leaves all-too-real victims. And Richard Moore is prepping for his latest TV appearance when he stumbles upon a death by poisoned coffee. Can Conan brew up a solution to the caffeinated crime?