Floating Sky Throne

Publisher's blurb:

Wind whistles through desolate and abandoned ruins, raised—somehow—so high above the continents below that it appears as a slow-moving star at night. Up here the air is cold, and thin—for the spells that once protected mortal breathers have long been fading. But, the dry environment, so far from wind and rain, has been excellent at preserving the ancient writings in a mysterious wall, behind a cold, stone throne...