The Secret Played by the Diary

Chronology
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Episode 614-615 (Int. Episode {{{int-episode}}})
Information
Title:	The Secret Played by the Diary
Japanese title:	日記が奏でる秘密 (Nikki ga Kanaderu Himitsu)
Original airdate:	May 7, 2011 (Part 1) May 14, 2011 (Part 2)
Season:	20
Manga source:	Volume 69: Files 10-11 (728-729) ~ Volume 70: File 1 (730)
Case
Cast:	Conan Edogawa Detective Boys Professor Agasa
Case solved by:	Conan Edogawa
Staff
Director:	Koujin Ochi
Organizer:	Umesaburo Sagawa
Storyboard:	Umesaburo Sagawa
Episode director:	614 Akira Yoshimura 615 Kouichirou Kuroda
Animation director:	614 Kenichi Otomo, Miharu Nagano 615 Michitaka Yamamoto
Music
Opening song:	Don't Wanna Lie
Closing song:	Tsukiyo no Itazura no Mahō

Cast

Characters
Conan Edogawa Ai Haibara Genta Kojima Ayumi Yoshida Mitsuhiko Tsuburaya Professor Agasa

Gadgets

Gadgets
Power-Enhancing Kick Shoes Wristwatch Flashlight Anywhere Ball Dispensing Belt

Case

Situation

Part 1

The Detective Boys are stranded on a mountain when Agasa's car breaks down. Seeking shelter from the rain they come across a villa where piano music was heard and enter the house when their calls are unanswered. Inside, they explore and discover a diary on the table confessing to a plan of a kidnapping and murdering a boy; a blackout then occurs due to the storm. They find a small coffin planned for the murder and realize its empty and the possibility the boy is still be alive. At that moment, piano music is heard again. Conan assures them it will be safe to search the house as the culprit is playing the piano. Ayumi wanders off on her own and finds a photo of a family and a room with water leaking out of it.

Part 2

Realizing the piano playing they hear is a recording, they enter the piano room.

People

Keita Onoda
	7 years old Student from Haido Elementary School Class 1-3

Chiaki
	7 years old Student from Haido Elementary School Class 1-3

Mrs. Onoda
	Keita's mother Picked up by Agasa

Resolution

  Show spoilers »

Conan notices the piano chair was set to a child's height and deduces where the boy is. He has the Detective Boys sing a song in the piano room and catches the boy watching them and befriends him. The boy, Keita Onoda, is a piano prodigy to which the kidnapper abducted to allow his daughter to win a piano competition. Conan also reveals the dairy entry is out of order due to Keita's tampering and that the kidnapper felt increasingly guilty as the days went on. After reading the last page in the dairy, they realize the kidnapper plans to suicide in the bathroom and manage to save him. In the aftermath, Keita's mother does not push charges due to Keita's defense. The kidnapper's daughter meanwhile, revealed she skipped the piano competition as she was worried about Keita's disappearance.

See also

• Season 20