Detective Conan
Battle of the Haunted Warhouse's Treasure (Part 2) (19x7)
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Conan investigates and realizes the abacus is a mechanism that reveals the secret room and that the warehouse was made by Samizu Kichiemon (三水 吉右衛門). The Detective Boys also receive a text message and realize the trick to the warehouse. The Detective Boys and Conan have the owner of the warehouse call the police before revealing their deductions.