The Old Blue Castle Investigation Case (1) S136E136 - The Old Blue Castle Investigation Case (1) 1999
The Detective Boys are on a camping trip but Dr. Agasa forgot the tent. They wander to a castle owned by Masuyo Mamiya, meet Katsuo Tabata, Mitsuru Mamiya, Takahito Mamiya, and learn that there's a secret treasure somewhere inside.
- Released: 1999-02-22
- Runtime: 50 minutes
- Genre:
- Stars: Minami Takayama, Kappei Yamaguchi, Wakana Yamazaki, Akira Kamiya, Rikiya Koyama, Megumi Hayashibara, Kenichi Ogata, Yukiko Iwai, Wataru Takagi, Ikue Otani, Chafurin
- Director: