The classic lost world adventure from the author of Sherlock Holmes. No one believed Professor Challenger's claims... ...that dinosaurs existed in the Amazon jungle. Critics ridiculed and mocked him, but he was as stubborn as he was intelligent. He was willing to venture into the jungles with nothing but a crude map, a skeptical professor, a big game hunter, and a reporter. Their adventure took them across an ocean, up the Amazon river, and deep into lands barely explored by adventurers in the early 20th century. When they finally reached the plateau on their map, they encountered their first big challenge--ascending the cliffs onto the plateau. To be so close to proving his claims with no way to ascend left the party frustrated. Professor Challenger however believed in determined ingenuity and did not give up easily. Would they find what they expected... ...or would they find more than they could handle? You'll love this classic adventure from Sir Arthur Conan Doyle, creator of Sherlock Holmes, because of the lost world of dinosaurs, lost tribes, ape-men, and a scientist determined to prove he is right.