While Roy led Julia and the others to search for the corpses of the blue dragonflight, preparing to mass-produce dragon liches, on another side, Archimonde was marching toward the continent of Kalimdor.
After destroying Dalaran and plundering a large number of treasures in this mage city, Archimonde had led the Burning Legion and the Scourge to wreak havoc in the Eastern Kingdoms for a few days. But he quickly lost interest because the resistance they encountered was too weak.