The primary problem in the story concerns the relationship between Nick and his teacher, Mrs. Granger. The fundamental challenge is the use of language, its invention of the word "frindle" and how Nick and Mrs. Granger spar over who actually has control of language. Over the course of the novel, language invention, rooted in the word "frindle," takes on a life of its own, as shopkeepers, entrepreneurs, and other significant people start to use the word, "frindle," a word that Nick invented primarily to get back at his teacher. Over the course of the novel, we understand how language is able to take on a life of its own. The resolution of the problem is that Nick understands the demands that comes with invention and inspiration, and also understands Mrs. Granger better, confirmed with a letter that explains how she willingly played a role in their linguistic based drama. When Nick makes an endowment to the school in Mrs. Granger's name and gives a pen to her allowing her to call it "whatever she wishes to," it represents a moment where opposing forces find resolution.