Some reviewers seem to question what this book is about. Well, it is not hard. It is about vengeance. Bloody, grisly, heartless, vengeance. Viking Vengeance. It is also about respect, love, and enduring friendship. Turning your enemy's greed to your advantage. A few other emotions and moral lessons that you can decide for yourself, just as all ancient tales of the gods were. Because that is what this is. A rewriting of the Norse tales, Valkyries included.