Case Closed, Vol. 31 Too Many Moores

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.
It's no great surprise to find a corpse in Kashiragami Forest--the supposedly cursed forest is a popular destination for would-be suicides. But the latest suicide case has the local police suspecting foul play. Then a tall, dark man with a moustache hangs himself at a local hotel...after claiming to be Detective Moore! Are the "suicides" really something more sinister...and is the killer laying a trap for Conan and the real Detective Moore?