The Lost World The Lost World is the 1912 novel by Sir Arthur Conan Doyle. The plot follows an expedition to an Amazonian plateau where it is discovered prehistoric animals, including dinosaurs, still exist. The expedition is routed by indigenous people and a race of apelike people where they encounter a war between the two. Odin's Library Classics Odin's Library Classics is dedicated to bringing the world the best of humankind's literature from throughout the ages. Carefully selected, each work is unabridged from classic works of fiction, nonfiction, poetry, or drama.