Psalms of Serphius

In Psalms of Serphius, through the character of Kaylan, we take a journey to see where and how one crosses the line from hero to villain. Is it simply a matter of perspective? History written by the winner? Perhaps the one difference between hero and villain is that in most cases, the villain follows the means justifies the end philosophy, while the hero will usually manage to find a way to satisfy the end without sacrificing his integrity. Maybe this is the distinction between the hero and the anti-hero. In Psalms, Kaylan certainly starts out with all the qualities and opportunities to be a hero, but by the end of the novel, he is most definitely an anti-hero, and on his way to becoming a villain.