This Hallow’s End, adventurers will face a new challenge striking at the very base of their homelands: the Headless Horseman! This fearsome creature will unleash destruction upon towns across Azeroth and Kalimdor. The stout of heart should rush out to meet him! To learn more about this event, which will run from 18 to 31 October, please check our Hallow’s End page.
Original post by World of Warcraft Community Site