George Edwards Hall

George Edward Challenger is a fictional character in a series of fantasy and science fiction stories by Sir Arthur Conan Doyle. Unlike Doyle's self-controlled, analytical character, Sherlock Holmes, Professor Challenger is an aggressive but virtuous figure. Like Sherlock Holmes, Professor Challenger was based on a real person—in this case, two people: an explorer named Percy Fawcett, who was Doyle's friend; and a professor of physiology named William Rutherford, who had lectured at the University of Edinburgh while Conan Doyle studied medicine there. Professor Challenger first appeared in the novel The Lost World (1912) by Arthur Conan Doyle.