During Guild Wars 2 Halloween event 2015, you have an achievement: New afterlife for Quaggan. This achievement requires that you donate 1,000 candy corn to the Quaggan Drooburt. A question often asked in game is, where is Drooburt? Well, he is located in Lions arch with all of the other Halloween vendors by the mystic forge/cauldron.
The Reward for the achievement is an item that rewards you with 5,000 Karma.