In Shadow Grove, look for a scarecrow name jacque Magnifico.
Buy a costume.
Then speak with Elyse (normal zone teleporter) hail, click list, click on "Western Plains of Karana".
At Night time, Run to the pumpkin farm South West of the map ( Loc -3896 -5537 ).
Hail Alfrid (Exterminator) and talk to him. Recieve your Sour Caramel Apple.
Put on a costume and kill every ghoul/werewolf at night.
Enjoy!