Conan, Haibara, and the kids decide to enter the house which belonged to Kichiemon a puppet maker and architect of the riddle. The house is filled with all kinds of booby-traps which Genta almost falls victim too until another treasure hunter saves him from a pit of spikes. As they continue to search the house they meet another treasure hunter, and end up falling down a trap door into the basement. Luckily they are saved by Conan's supersized soccerball. In the basement they find Kichiemon's grave, a bunch of human remains, and an old lady. The first treasure hunter reveals grudgingly that he found the mirror artifact and Conan reveals the tear-shaped stone. They continue looking for the sword, which is the last piece of the puzzle.