417화: 저택 직원들과 사망한 것으로 추정되는 쌍둥이의 과거 사고 조사

417

They decide to investigate the four workers of the mansion along with the accident that took place thirteen years ago. Conan realizes that a twin who was supposed to be long dead was involved, and that was what scared the manager. It was revealed that on the wristwatch of the dying victim, was the location of where the boat accident happened. (Source: Wikipedia)