The next day, as Sara considers Charlie's wedding proposal, Fujita investigates the Darwin herbarium pages. When he shows them to Charlie, Charlie realizes that they came from Jodrell Laboratory where Mary works. That night, they go to a casino which is reportedly uses as a meeting place. There, Charlie sees Mary with Donaldson, and she admits to stealing and selling the herbarium pages to fund her gambling addiction. Later, Charlie tells Fujita that he proposed to Sara who has since disappeared. Charlie offers to find Sara if Fujita could help him by finding and returning all the stolen pages. Fujita uses his connections to find the man who eventually bought the pages, Mr Sanders, a well-known psychic. He agrees to sell them to Fujita, but at 100 times what he paid for them. He also tells Fujita that he is about to lose something very precious to him and offers to sell him some clues. Fujita realises that Sanders is referring to Sara eventually Fujita uses the clues to find Sara looking at a Turner painting at the Tate Gallery where Fujita says that he needs her. They have a tearful reunion and return to Japan together.
サラを自分の母親代わりである叔母・メアリーに会わせ、さらに彼女にプロポーズしたチャーリー。一方フジタは、不正で横流しされていたダーウィンの植物標本の捜査を開始していた。植物標本の出所についてチャーリーに相談したフジタは、彼とサラを伴って、横流しの打ち合わせが行われているというカジノへと向かう。そこにいたのは、なんとメアリー。植物の研究所に勤める彼女が、横流しの張本人だったのだ。
ショックで姿を消してしまうサラ。チャーリーは彼女を探しに出る。そしてフジタは、別ルートで横流しされた標本を探し始めるが…。
