The script is an ancient elven dialect. Upon further observation, it twists, the words becoming visible:

There are no gods. There is only the subject and the object, the actor and the acted upon. Those with will to earn dominance over others gain title not by nature but by deed. I am Geldauran, and I refuse those who would exert will upon me. Let Andruil's bow crack, let June's fire grow cold. Let them build temples and lure the faithful with promises. Their pride will consume them, and I, forgotten, will claim power of my own, apart from them until I strike in mastery.

Side Quests:

Hammering Out the Details