When he decides to turn his fifth grade teacher's love of the dictionary around on her, clever Nick Allen invents a new word and begins a chain of events that quickly moves beyond his control.
Of all Nick's ideas, the frindle is his most successful. It's a pen, or what used to be called a pen. Soon, much of the nation is crazy about frindles--except for Mrs. Granger, Nick's teacher, who, although she doesn't realize it, was the inspiration for the idea.