The Adventures of Huckleberry Finn Mark Twain's The Adventures of Huckleberry Finn is a novel about a young boy's coming of age in the Missouri of the mid-1800's. The main character, Huckleberry Finn, spends much time in the novel floating down the Mississippi River on a raft with a runaway slave named Jim. Before he does so, however, Huck spends some time in the fictional town of St. Petersburg where a number of people attempt to influence him. Before the novel begins, Huck Finn has led a life of absolute freedom. His drunken and often missing father has never paid much attention to him;