(Kurayami Tō no Hihō)
|Original airdate:||September 15, 2012 (Part 1)|
September 22, 2012 (Part 2)
|Manga source:||Volume 76: Files (798-803)|
|Case solved by:|
|Next Conan's Hint:|
|Technical Director:||705 Kouichirou Kuroda
706 Minoru Tozawa
|Animation Director:||705 Masatomo Sudo (supervisor), Seiji Muta (supervisor), Michitaka Yamamoto
706 Masatomo Sudo (supervisor), Seiji Muta (supervisor), Chiemi Hironaka
Ran's karate senpai, Kyodo Nanami, invites the Detective Boys for a treasure hunt at her home. Once there, they discover the fact that the treasure is very likely hidden in the Dark Tower. However, there aren't any entrances nor windows to enter the tower with. Around the estate, they also discover that this house has been equipped with various tricks and traps. Later, Nanami's mother, Kyodo Momoe, had been discovered dead, thought to have fell from the tower. While investigating both cases, Haibara disappears, and the others also discover two secret entrances.
While investigating in and underground tunnel, Conan is separated from everybody else. As he realizes he has ventured into the tower itself, he lets everybody into the tower. He then tranquilizes Kogoro and explains that Momoe's death was an accident due holography and a misunderstanding. Afterwards, Haibara, Ayumi, Mitsuhiko, and Genta are discovered to be safe and that the treasure hidden in the tower was a giant kaleidoscope.