Case Closed - Season 1 - Eps 572: Treasure Battle in the Haunted Warehouse (2)
Conan investigates and realizes the warehouse is designed by Samizu Kichiemon (三水 吉右衛門) and that the abacus is the switch that will reveal the secret room. The Detective Boys and Conan have the owner of the warehouse call the police before revealing their deductions. When the police arrive, the Detective Boys explain that the warehouse has a low ceiling which was concealed by the interior design of the warehouse. A fake window was installed inside the warehouse to mimic the distance between the window and the ceiling outside the warehouse. Conan then explains if the abacus is arranged as to display the Kanji Samizu (三水), the ceiling would lower revealing the secret room. After doing so, they discover a man in the room. They learn that the man was a serial robber and the treasure was all stolen good. Conan then reveals to the Detective Boys that he discovered Heiji had been giving them advice during the investigation and forces Heiji to come out of hiding.
About Case Closed

Title: Case Closed
First Air Date: 1996-01-08
Last Air Date: 2025-03-08
Status: Returning Series
Rating: 8/10 (from 683 votes)
Language: JA
Seasons: 2
Total Episodes: 1157
Network: YTV
Genres: Animation, Crime, Mystery, Comedy
Production Companies: TMS Entertainment, Kyokuichi-Tokyo Movie
Synopsis
The son of a world famous mystery writer, Jimmy Kudo, has achieved his own notoriety by assisting the local police as a student detective. He has always been able to solve the most difficult of criminal cases using his wits and power of reason.
Cast

Minami Takayama
Conan Edogawa (voice)

Kappei Yamaguchi
Shinichi Kudo (voice)

Wakana Yamazaki
Ran Mouri (voice)

Akira Kamiya
Kogoro Mouri (voice)

Rikiya Koyama
Kogoro Mouri (voice)

Megumi Hayashibara
Ai Haibara (voice)

Kenichi Ogata
Hiroshi Agasa (voice)

Yukiko Iwai
Ayumi Yoshida (voice)

Wataru Takagi
Genta Kojima (voice)

Ikue Otani
Mitsuhiko Tsuburaya (voice)