Search of Passengers' Luggage

Poirot, M. Bouc, and Dr. Constantine search the luggage of all passengers in the Stamboul-Calais coach. In Hildegarde Schmidt's suitcase, they find a Wagon Lit uniform with a missing button, matching the one Mrs. Hubbard found. Later, in Poirot's own valise, they discover a scarlet silk kimono embroidered with dragons. These discoveries deepen the mystery.