Moral Development in The Adventures of Huckleberry Finn and The Great Gatsby Moral Development, according to the Webster's dictionary means an improvement or progressive procedure taken to be a more ethical person, and to distinctly differentiate between right and wrong. The Adventures of Huckleberry Finn and The Great Gatsby, both pose as pieces of literature that vividly portray moral development through the narrator's point of view. Mark Twain, the author of The Adventures of Huckleberry Finn, wants the reader to see and focus on the search for freedom. As on the other hand, Francis Scott Fitz