Detective Boys' Locked Room Mystery Battle

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Episode 799
(Int. Episode 852)

TV Episode 799.jpg

Title: Detective Boys' Locked Room Mystery Battle
Japanese title: 探偵団の密室推理合戦
(Tantei-dan no Misshitsu Suiri Gassen?)
Original airdate: November 14, 2015
Broadcast rating: 8.4%
Filler case: #249
Season: 25
Manga source: TV Original
Cast: Conan Edogawa
Ai Haibara
Detective Boys
Hiroshi Agasa
Juzo Megure
Kazunobu Chiba
Case solved by: Hiroshi Agasa (via Conan)
Next Conan's Hint: Water
Director: Yasuichiro Yamamoto
Screenplay: Masaki Tsuji
Storyboard: Shigenori Kageyama
Episode director: Takanori Yano
Animation director: Seiji Muta (supervisor)
Akio Kawamura
Character design: Masatomo Sudo
Kumiko Shishido (design works)
Production cooperation: BIG BANG
Opening song: Nazo
Closing song: Kimi e no Uso
Prev episode: « The Moving Target
Next episode: After That Hundred Million Yen »
List of episodes

Detective Boys' Locked Room Mystery Battle (探偵団の密室推理合戦 Tantei-dan no Misshitsu Suiri Gassen?) is the 799th episode of Detective Conan anime.





One morning, the Detective Boys are on their way to an abandoned building lot which Professor Agasa has managed to loan from a wealthy acquaintance, in order to practice their soccer skills for an upcoming school match. The lot is located next to an eight-story building, and was formerly the site of a mansion which is already torn down, with only a family-sized pool and a shed remaining. However, when they arrive at the lot, they find the grounds crowded by the police: A body has been found in the pool.


EP799 Case.jpg

Location: Empty Lot
Victim: "Gecko" - Burglar
Cause of death: Blunt force trauma to the Head
Suspects: Unknown
When Professor Agasa unlocks the grounds for the children, he finds the body floating in the pool, filled with water from last night's rain. While the cause of death is known, the questions as to how and why "Gecko" has come to rest inside the locked-down lot, and who might have murdered him, are yet to be found out.

Since the ground is a crime scene, the police has close it off until the case is solved. Megure jokely suggests that the detective boys should try solve this mystery, but the kids takes up the challenge.


  • Resolution


    • This is the first episode to have never revealed the culprit's face, as he was only shown as the "shadow man" several times.


    In other languages

    Language Title Translation
    Flag of Catalonia Catalan (Catalan dub) La batalla de deduccions dels detectius júnior The Detective Boys deduction battle
    Flag of Thailand Thai การแข่งสันนิษฐานของขบวนการนักสืบเยาวชนในห้องปิดตาย Detective Boys' Locked Room Deduction Battle
    Flag of Vietnam Vietnamese Cuộc chiến suy luận của Đội thám tử nhí trong căn phòng khóa kín Detective Boys' Locked Room Deduction Battle

    See also

    Episodes of Season 25