Professor Challenger is a fictional character created by author Arthur Conan Doyle. He is best known as the protagonist in the novel The Lost World, published in 1912. Challenger is depicted as a bold and brash scientist who is unafraid to challenge conventional wisdom and embark on daring adventures. In The Lost World, Challenger leads an expedition to a remote plateau in the Amazon rainforest, where he claims to have discovered prehistoric creatures. His character embodies the spirit of exploration and scientific inquiry, often clashing with skeptics and critics, making him a memorable figure in adventure literature.