Diablo: Moon of the Spider : Blizzard Legends by Richard A. Knaak

Since the beginning of time, the angelic hosts of the High Heavens and the demonic hordes of the Burning Hells have been locked in a struggle for the fate of all Creation. That struggle has now come to the mortal realm...and neither Man nor Demon nor Angel will be left unscathed....
Binding: Paperback / softback