Halloween is a really big deal in Guild Wars. For about two weeks, All Hallows Eve breaks lose all over Guild Wars, but especially in Lion’s Arch. This area is controlled by the White Mantle, but is in the center of an area where the surrounding forests and swamps are controlled by the undead.
The town of Lion’s Arch, and the outpost of Droknar’s Forge, among other places possibly, are transformed during Halloween in many different ways.
During the season, killing monsters often results in the drops of Trick or Treat bags, which contain interesting treats.