The Sundering War of the Ancients Book 7

 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 with 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 Demon Soul War of the Ancients, Book 6

 The night elf defenders, led by the young druid, Malfurion Stormrage, and the wizard, Krasus, fight a desperate battle to hold back the Legion's terrible onslaught. Though only embers of hope remain, an ancient power has risen to aid the world in its darkest hour. The dragons - led by the powerful Aspect, Neltharion - have forged a weapon of incalculable power: the Dragon Soul, an artifact capable of driving the Legion from the world forever. But its use may cost far more than any could have foreseen.