Hallows End In-Game Holiday Event

Hallows End is back again .. with some of it familar and some of it new.  The Headless Horseman still makes an appearance, albeit with upgraded loot now at ilevel 670, plus the possibility of the mount and battle pet.

There are new dailies, new rewards and new decorations for your garrison.

You can see the full information on wowhead:

http://www.wowhead.com/guides/world-events/holidays/hallows-end