During this event,you will be able to earn action points in the open world, unlock loot chests, and claim the Ghost bat.Also there are six new pieces of furniture to a Halloween theme that can be earned.These elements include: friendly pumpkin lantern, Scarecrow, Halloween, bonfire.
You can earn challenge points by fishing, farming, and defeating monsters. Points will count towards a daily bonus, in addition to the weekly unlockable chest, the ring will include a pair of skeletons. Please note that the ring is not for sale.
Keep in mind that this event will take place within a month, so you have time to earn points and unlock these items.