'GW2' Shadow of the Mad King Halloween Event Guide: Achievements, Weapons, Trick-or-Treat Bags, Everything to Expect
Halloween is coming in Guild Wars 2, and so is the returning Mad King Thorn, as players of the role-playing game celebrate the season in the Mad Realm with the Shadow of the Mad King event. The said event will make them participate in several sub-events to win prices.
Source: gamenguide.com