The objective of this event is to gather Garments from the dead, it's not like they need them anymore anyways. Each garment has a built-in Spook Power, that varies according to a few things.
Rarities:Garment itself can have one of the 5 well-known tiers, each tier tells the base Spook Power of the item.
Costume:Each Garment is part of a Costume set, some costumes are rarer than others, and these have a slightly increased amount of Spook Power on them. Also, having a full set of a Costume provides extra Spook!
Aspect:On top of all that, the Garments carry an aspect, which tells how much extra Spook they posses. There are 40 unique Aspects, each one with its own Spook level! It is up to you to find out which one is the best, and gather them.
The stronger your outfit is, the spookier you'll be. More spooks means more candy, so make sure you're always top-notch with your attire! You can only spook every 6 hours, except if you buy a Decoy Doll from Noctix.
Spooking also wears out your Costume, which means the more you use it, the weaker it gets, to the point that you'll obtain no more candy from it. At that point you should just get rid of it and go after more!
You can trade Garments with other players, that can be useful when you dig out only hats and shoes and don't want to wander around in your panties.
Garments you're not using anymore can be kept as a Memento, the Memento collection records which unique costume pieces you've collected. Completing the collection will grant you some neat bonuses.