Brash, bold, and sometimes brutal, superheroes might seem to epitomize modern pop-culture at its most melodramatic and mindless. But according to Ben Saunders, the appeal of the superhero is fundamentally metaphysical - even spiritual - in nature. In chapter-length analyses of the early comic book adventures of Superman, Wonder Woman, Spider-Man, and Iron-Man, Saunders explores a number of complex philosophical and theological issues, including: the problem of evil; the will-to-power; the tension between intimacy and vulnerability; and the challenge of love, in the face of mortality. He...