Nathan Garrideb comes to Sherlock Holmes, asking for help to find someone with the same surname as him. If he can find such a person, Nathan can touch a $5 million inheritance. He has himself been tracked down by an American Garrideb from Kansas. The latter says they need to be three people of the same name to be able to touch the total amount of $15 million. The case seems most curious to Holmes, who decides to look further into it. "The Adventure of the Three Garridebs" is part of "The Case-Book of Sherlock Holmes". Sir Arthur Conan Doyle (1859-1930) was born in Scotland and studied medicine at the University of Edinburgh. After his studies, he worked as a ship’s surgeon on various boats. During the Second Boer War, he was an army doctor in South Africa. When he came back to the United Kingdom, he opened his own practice and started writing crime books. He is best known for his thrilling stories about the adventures of Sherlock Holmes. He published four novels and more than 50 short-stories starring the detective and Dr Watson, and they play an important role in the history of crime fiction. Other than the Sherlock Holmes series, Doyle wrote around thirty more books, in genres such as science-fiction, fantasy, historical novels, but also poetry, plays, and non-fiction.