The Lost World by Arthur Conan Doyle - is a science fiction novel by British writer Sir Arthur Conan Doyle, published by Hodder & Stoughton in 1912, concerning an expedition to a plateau in the Amazon basin of South America where prehistoric animals still survive. It was originally published serially in the Strand Magazine and illustrated by New-Zealand-born artist Harry Rountree during the months of April-November 1912. The character of Professor Challenger was introduced in this book. The novel also describes a war between indigenous people and a vicious tribe of ape-like creatures.
Edward Malone, a young reporter for the Daily Gazette, asks his editor for a dangerous assignment to impress the woman he loves, Gladys, who wishes for a great man capable of brave deeds and actions. His task is to approach the notorious Professor Challenger, who dislikes the popular press intensely and physically assaults intrusive journalists. The subject is to be his recent South American expedition which, surrounded by controversy, guarantees a hostile reaction. As a direct approach would be instantly rebuffed, Malone instead masquerades as an earnest student. On meeting the professor he is startled by his intimidating physique, but believes his ruse is succeeding.
Seeing through the masquerade, then confirming Malone's scientific knowledge is non-existent, Challenger erupts in anger and forcibly throws him out. Malone earns his respect by refusing to press charges with a policeman who saw his violent ejection into the street. Challenger ushers him back inside and, extracting promises of confidentiality, eventually reveals he has discovered living dinosaurs in South America, following up an expedition by a now-deceased previous American explorer named Maple White. At a tumultuous public meeting in which Challenger experiences further ridicule (most notably from a professional rival, Professor Summerlee), Malone volunteers for an expedition to verify the discoveries. His companions are to be Professor Summerlee, and Lord John Roxton, an adventurer who helped end slavery on the Amazon; the notches on his rifle showing how many slavers he killed doing so.
Running the gauntlet of hostile tribes, the expedition finally reaches the lost world with the aid of indigenous guides, who are superstitiously scared of the area. Summerlee retains his scepticism, despite being delighted at making other scientific discoveries in the fields of botany and entomology: even a glimpse of a pterodactyl at a distance fails to convince him, because he believes it is some species of stork. The sharper-eyed Roxton is inclined to agree it is not a stork but has no clue what it really is, until a night-time encounter when it flies down and is seen by all at close range, as it steals the companions' dinner. After this, Summerlee apologises to Challenger.