The Lost World is a novel by Sir Arthur Conan Doyle, first published in 1912. It's one of the most famous early works of science fiction and adventure, introducing the concept of an isolated geographic area where prehistoric animals survive. The story follows Professor Challenger, a brash and eccentric scientist, who leads an expedition to a plateau in the Amazon basin of South America. The team includes Professor Summerlee, a skeptical scientist; Lord John Roxton, an adventurer and sportsman; and Edward Malone, a journalist seeking to prove himself to his love interest. The group discovers a plateau where dinosaurs and other prehistoric creatures still exist. They face various dangers, including hostile natives and the challenges of surviving among the dinosaurs. he novel popularized the idea of lost worlds and inspired numerous adaptations in various media, including films, television series, and other books. It influenced the genre of dinosaur fiction and contributed to the public's fascination with prehistoric life. The Lost World remains a classic adventure novel, showcasing Arthur Conan Doyle's storytelling prowess and imagination.