Both books raise the concept of evil in life, but Golding finds evil within the boys themselves, while Ballantyne experience evil from the outside world. The naval officer in Lord of the Flies also echoes Coral Island when he says he had expected the British boys to do better. Golding calls his two chief characters Jack and Ralph just like Ballantyne. Ballantyne's third character, Peterkin, is seen in the character of Piggy in Lord of the Flies. Each book has a scene where a wild pig is killed for seemingly no reason. Both authors uses the natural elements of a storm and a hurricane, the former to rescue the boys from death, and the latter to stop a quarrel between Jack and Ralph. Both contain descriptions of brutality, but Golding makes the brutality real by making it a part of human nature.