Case Closed Vol. 17 — Manga Raw / Buy Official

In the sound-murder case, the culprit uses a recording of a specific frequency that strains the heart to kill a victim with a chronic condition from a distance. Conan exposes the absent killer through a playback device and a volume note left at the scene. The vanished-weapon mystery relies on a blade made of ice or food that melts away, and Conan breaks the alibi using the gap between room temperature and melting time. The clock gimmick fakes the time of death with advanced hands, and Conan catches it through a slip in the second hand. The "L-N-R" cipher is quietly planted as a thread leading into the next volume.