These lively, varied and thought-provoking science-fiction stories (from the era of Jules Verne and H. G. Wells) are linked by their imposing central character, the pugnaciously adventurous and outrageous Professor Challenger. The Lost World (forebear of Jurassic Park) vividly depicts a perilous region in which the explorers confront creatures from the prehistoric era. 'The Poison Belt' presents an eerie doomsday scenario, while ‘The Disintegration Machine’ satirically comments on scientific cynicism.