Gin talks with Sharon through the phone about Shiho. After the phone conversation with Gin, Sharon rethinks about what she had told Conan to entrust Shiho to him. She then tells herself that the one who is going take Shiho isn't her but Bourbon. At the Tokyo Station the Detective Boys where impressed to see a steam locomotive for the very first time, which Haibara explains the basics of the locomotive to them but it seems that she have catch a cold which Conan reminds her what he told her that she had to stay home. It has been turned out that Sonoko's family company the Suzuki Conglomerate. It has been known why Sonoko is doing it by going in the luxurious first class car, because of Kaitō Kid. Sera has been arrived at the mystery train and meet up with Ran, Sonoko and Conan with his gang. After being told why Sera also has arrived at the mystery train is because of the quiz which Sera asked Ran where Kogorō is. Kogorō is watching the other contestant which by one there was a trouble. Murobashi Etsuto then ask the conductor where that person is who took his cabin which Kogorō introduces himself as "Mōri Poirō" which is coming from the name Hercule Poirot. Ran has been arrived alongside with Conan to take Kogorō away from the contestant. While being in the mystery train they received a mystery letter which contains to be part of the quiz. Being in Car 7 they see Murobashi being shot which they think that it is all part of the game, which later has become more realistic which Conan later came to realize that Car 7 has been disappeared while the train was in motion.