Dreamers (David Eddings)

Richly imaginative, this fantasy will take you to the brink of the end of the world as gods fight demons and monsters for the right to rule — and their lives.
While most continents float freely on the face of Mother Sea, the Land of Dhrall survives anchored by the will of the Gods. All Gods, Elder and Younger, share the people and the land of Dhrall equally. But the one place they never enter is The Wasteland: a barren and hideous wilderness...