“Now, Watson," said he, "we have picked up two clues this morning. One is the bicycle with the Palmer tyre, and we see what that has led to. The other is the bicycle with the patched Dunlop. Before we start to investigate that, let us try to realize what we do know, so as to make the most of it, and to separate the essential from the accidental.”

British writer and physician

Sir Arthur Conan Doyle was a British writer and physician. He is best known for creating Sherlock Holmes and Dr. Watson, whose stories became landmarks in crime fiction, and for The Lost World, the 1912 novel that helped name a branch of speculative fiction. Beyond those works, he wrote more than 200 stories and articles, along with four volumes of poetry and several stage pieces. He was knighted by King Edward VII in the 1902 Coronation Honours.