The Sundering (WarCraft: War of the Ancients, #3)

The hour of wrath draws near...
The valiant night elves have been shattered by the loss of their beloved general. The black dragon, Neltharion, has claimed the Demon Soul and scattered the mighty dragonflights to the winds. Above all, the demonlord, Archimonde, has led the Burning Legion to the very brink of victory over Kalimdor. As the land and its denizens reel from this unstoppable evil, a terror beyond all reckoning draws ever nearer from the Well of Eternity's depths...

WARCRAFT

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!
THE SUNDERING
An original trilogy of magic, warfare, and heroism based on the bestselling, award-winning electronic game series from Blizzard Entertainment.