You find a slip of parchment in your mailbox.
Calling all Horde! We need your help!
The Legion is attacking Azeroth and it’s going to take every caster, fighter, and healer we have to send them back through the portals. Those demons took down the King of Stormwind, along with our beloved Warchief, Vol’jin. Our new Warchief Sylvanas has issued a call to avenge our fallen.
The Legion has thrown down the gauntlet. It’s time we slapped them in the face with it. Take up your wands and swords! Join the battle! Fight for our homes, our lives, our families! Fight for the Horde!