Go to Eva and se will give you a thing that looks like a empty red box, than go to the Speaker and he will fill this box for 25 motes of light. Than you give this to the cryptarch or someone else. Every vendor will give you something in exange for a thing that a vendor gives you. For example; you will get some candies from (I think it is) Banshee, bring those candies to Amanda Holiday. She will give you drop. Give the drop to another vendor, that vendor will than give you something. Trade that in with another vendor. When you recieve the unchocolate from Cayde, go to Eris Morn. She will give you a treat bag. Open this and get the SUPERblack shader. You will also get something called a piece of celerie. Dont now why you would get vegetables while it is halloween.... I dont now what you have to do with this celerie... Eat it I gues? If anyone of you guys find out what you have to do with this, please respond.