The Lost World by Sir Arthur Conan Doyle is a classic adventure novel about an expedition to an isolated plateau in the Amazon jungle, where dinosaurs and other prehistoric creatures have survived. Led by the bold Professor Challenger, the team—including journalist Edward Malone, rival scientist Professor Summerlee, and hunter Lord John Roxton—faces numerous dangers in a world untouched by time. They encounter fierce dinosaurs, giant insects, and confrontations with indigenous tribes, pushing them to their limits.

The novel explores themes of exploration, ambition, and the clash between science and nature. With its fast-paced narrative and vividly imagined setting, The Lost World has inspired countless stories of "lost worlds" and remains an influential work in the adventure and sci-fi genres.