Meitantei Conan S19E07 - Battle of the Haunted Warhouse's Treasure (Part 2)

Conan investigates and realizes the abacus is a mechanism that reveals the secret room and that the warehouse was made by Samizu Kichiemon. 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.