The novel begins in 1971 and introduces main character Malin Hatch and his older brother Johnny Hatch. In search of something to do with their summer day, Malin suggests that the two explore Ragged Island, an island owned by the Hatch family. Ragged Island is strictly off limits to the boys, because of its ability to "destroy" those who come in contact with it. The Hatch brothers ignore their father's demand to stay away from the island and set off for it. Once the boys make it to the island, a terrible accident takes place, that Malin will struggle with for the next 25 years.