In the Netherlands they are lead to a castle where they research to find the rare plant that Mr. Curtain wants is a duskwort, a plant that might be extinct because its so rare. This plant can put a large amount of people to sleep and cure narcolepsy which Mr. Benedict and Mr. Curtain both have. After the library they go to a hotel for the night but were found by Mr. Curtain's workers called ten men because they have ten different ways of punishing you. All four attacked him but were defeated. When they thought that it was all over, Milligan, Kate's father saved them.