The Canterville Castle is a building located in Ascot, England in the Oscar Wilde's novel titled The Canterville Ghost.
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When the American, Mr Otis, bought Canterville Castle, everyone told him that this was very foolish, as the place was haunted. But Mr Otis answered, “I come from a modern country, where we have everything that money can buy. And if there were such a thing as a ghost in Europe, we would have it at home in one of our museums.” A few weeks later, on a lovely July evening, Mr Otis, his wife and their children, Washington, Virginia and the twins, went down to their new home. When they entered the avenue of Canterville Castle, the sky suddenly became dark and a spooky stillness was in the air. Mrs Umney, the housekeeper, led them into the library of the castle, where they sat down and began to look around. Suddenly, Mrs Otis saw a red stain on the floor just by the fireplace and said to Mrs Umney, “I am afraid something has been spilt there.