Martin's books take what could be generic ideas about morality and honor and make them compelling through very specific and individual dilemmas and concerns. There are wars, love affairs, surprising reversals and a persistent, powerful but unpredictable magic that continually asserts itself at key moments. Through it all, knotty questions are constantly asked of kings, servants, mercenaries and outcasts: At what point do you draw a line and assert that someone else's actions are wrong? When do you risk everything you have to fight what you've decided is evil? How do you even decide what evil is? What ideas and relationships are worth fighting for, and when is discretion the better part of valor?
There are no easy answers, but as it gains mastery in its depiction of Martin's complex and compassionate saga, "Game of Thrones" is doing an increasingly satisfying job of exploring those questions.