The Boy Detectives Club – The Invisible Fiend
Seventh film in the Boy Detectives Club series.
- Genre: Mystery
- Director: Tsuneo Kobayashi
- Cast: Susumu Namishima, Hitomi Nakahara, Yūnosuke Itō, Hiroshi Yamate, Yasushi Obata
- Country: Japan
Seventh film in the Boy Detectives Club series.