It started as a simple case: find a missing computer programmer suspected of scamming his clients. But when Detective Moore finds his man, Conan finds something else–evidence of the elusive Men in Black! Can an abandoned diary put Conan on the trail of the criminal syndicate that de-aged him? What clues are coded into the go board the computer genius left behind? For the first time, Conan gets close to the Black Organization–too close for comfort!