"There are dark days ahead, Harry," says Dumbledore, Harry's mentor and the avuncular headmaster of Hogwart's Academy at the end of the recently released film, Harry Potter and the Goblet of Fire, "days when we will be forced to choose between what is right and what is easy." One of the most magical things about J. K. Rowling's Harry Potter books and now films, the last two of which have been just splendid, is the way they subtly weave lessons about ethical choice and character into their gripping plots. Indeed, the plots themselves pivot on the crucial choices of the...