WOW-EU: The Headless Horseman Returns!

From wow-europe.com

This Hallow's End, adventurers will face the return of the Headless Horseman! This fearsome creature will unleash destruction upon towns across Azeroth and create opportunities for adventure and a little fire fighting. 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 Hallow's End page on official website.