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....

Since the beginning of time, the angelic forces of the High Heavens and the demonic hordes of the Burning Hells have been locked in eternal conflict for the fate of all Creation. That struggle has now spilled over into Sanctuary - the world of men. Determined to win mankind over to their respective causes, the forces of good and evil wage a secret war for mortal souls. This is the tale of the Sin War - the conflict that would forever change the destiny of man.

When the world was young, all life shook before the might of Galakrond, a massive primal dragon whose hunger could not be sated. Five primal dragons rose valiantly beside the titan-forged Keeper Tyr to combat this threat. Though the fight was desperate, Galakrond fell by their teeth and talons, and the five were chosen to become protectors of Azeroth. The titans gifted Nozdormu, Ysera, Alexstrasza, Malygos, and Neltharion with Order magic, transforming them into the Aspects: powerful dragons with command of time, nature, life, magic, even the earth itself.

Amid the restless evil of Sanctuary, only the Horadrim, an ancient order of heroes and scholars, wield the knowledge needed to light the way for humanity. In the Book of Lorath, join Lorath Nahr, one of the last of the dwindling Horadrim, on a journey through Sanctuary's most powerful relics and the stories behind them. It is Lorath's hope that this volume will preserve his knowledge for all time . . . and pass it down to those who will inherit the fight against the Prime Evils.

In the final, apocalyptic chapter of this epic trilogy, the dragon-mage Krasus and the young druid Malfurion must risk everything to save Azeroth from utter destruction. Banding together the dwarves, tauren and furbolg races, the heroes hope to spark an alliance to stand against the might of the Burning Legion. For if the Demon Soul should fall into the Legion's hands, all hope for the world will be lost. This then, is the hour...where past and future collide!