Discuss the maturation theme throughout in the novel of The adventures of Huckleberry Finn”

In the novel of The adventures of Huckleberry Finn, there has been much discussion about the theme of maturation in the novel. While Huck seems to have matured a great deal throughout the novel, when Tom Sawyer reappears, he seems to revert to the immature child we see at the beginning of the novel. Discuss the maturation theme in the novel. Use evidence from the novel, The adventures of Huckleberry Finn, to make your argument.