Malcolm is the main protagonist of "The Lost World", in which he agrees to help wealthy paleontologist Richard Levine plan an expedition to Isla Sorna, Jurassic Park's secondary site. When Levine becomes trapped on the island after going there alone, Malcolm and the remaining expedition members mount a rescue. By the time frame of "The Lost World", Malcolm has become more proactive and vigorous, and has enhanced his knowledge about dinosaurs. He is again injured in a dinosaur attack, but survives.