Until today, the fourth monthly achievement was just an empty slate, question marks for those inquisitive minds.

Now that the Halloween update has launched, we now have the final monthly achievement:

CANDY CORN CONSUMPTION

This achievement covers how much Candy Corn you eat during the month of October. There are four tiers:
TIER ONE: Eat 10 pieces of Candy Corn
TIER TWO: Eat 50 pieces of Candy Corn.
TIER THREE: Eat 100 pieces of Candy Corn.
TIER FOUR: Eat 150 pieces of Candy Corn.

The reward is relatively plentiful…

Along with the usual experience boost and 20 Mystic Coins, those completing the monthly achievements also get TEN jugs of Liquid Karma, each worth 4,500 karma no matter what level you’re at (so that’s 45,000 karma).

The item is rare, account-bound (so you can bank it and save it for later to use on ANY character on your account) and also available once-per on completion of daily achievements.