The Lost World is a science fiction novel by British writer Arthur Conan Doyle, published by Hodder & Stoughton in 1912, concerning an expedition to a plateau in the Amazon basin of South America where prehistoric animals still survive.
Arthur Conan Doyle, in full Sir Arthur Ignatius Conan Doyle, (born May 22, 1859, Edinburgh, Scotland—died July 7, 1930, Crowborough, Sussex, England), Scottish writer best known for his creation of the detective Sherlock Holmes—one of the most vivid and enduring characters in English fiction.