The Coral Island by R. M. Ballantyne is a classic adventure novel that tells the story of three boys-Ralph, Jack, and Peterkin-who are shipwrecked on a remote tropical island. The novel follows their survival, exploration of the island, and encounters with natives and pirates. As they adapt to their surroundings, they build shelters, hunt for food, and face moral challenges, all while maintaining their sense of camaraderie and adventure. Written for young readers, The Coral Island explores themes of survival, friendship, and the conflict between civilization and savagery.