After returning home to Azeroth, Alleria Windrunner calls upon her estranged siblings—Sylvanas, the warchief of the Horde, and Vereesa, ranger-general of the Silver Covenant—to join her in a quest to retake their ancestral home, Windrunner Spire, from the undead who have overrun it.

It was a bitter blow. She had expected to venture here in triumph, not to discover another defeat. The victory was hollow. But she backed away from the throne, straightened up, and accepted that the cycle would go on. Arthas was dead. What did it matter if another corpse filled his vacant throne?