Home/Discover/Case Closed - The Mysterious Written Invitation CaseCase Closed - The Mysterious Written Invitation Case21世紀こども百科ビデオ・シリーズ 名探偵コナン 科学館 謎の招待状事件Case Closed - The Mysterious Written Invitation Case1998 · OVA · 1 episodes▶ Watch episode 1+ My list OverviewEpisodesThe storyOVAThe Mysterious Written Invitation CaseMysteryEpisodesChoose your next chapterEpisode titles follow your spoiler shield.Edit watched progress1Episode 140 min▶More in this worldRelated animeDetective ConanTV · 1996