The coffin that he is buried in deep below the ghostlands will always magically unlock, because of a curse that was put on it by Necromantica when the Face of Decay was created by the lich king Daevok. Being immortal, he cannot be killed and he can only be locked away in the afterlife for a single year. Along with other halloween themed decorations, candy pumpkins will appear in and around all major cities, when used they will give LollipopsChocolate CookiesCandy or Halloween Coins! Halloween Coins are dropped by undead, demonic, human-like or spooky creatures that are somehow related to the Halloween theme. Of course, there will be rewards! Halloween is about celebrating and having fun together. Want a cool outfit? Find a Hallows Witch, there's one outside Carlin to the west, and one around Thais boat - be warned, they can be lured away to other places. The event begins with the Autumn seasonal world change. Even some creatures change their appearance! During this time you can obtain special rewards that are only available throughout the event.

The Halloween Event starts with a spooky landscape change, festively decorated cities and a mysterious 'dungeon opening' to be found in the ghostland near Carlin.