Hmmm... I'm currently stumped. I'll keep thinking, though!
Another! :)
The password's a challenge It makes my brain sore It's one in the morning I think I may snore! Though with your decoding A promise to keep And ponder the puzzle Whilst I am asleep!

Makes me wonder if these items might be related to alcohol... or something else altogether. I might have to save the alcohol for later, though. I can't really... think properly while drinking.
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Pieshake is 8 letters, and it has 4 vowels and 4 consonants. The flavours are Chocolate, Key Lime, Pumpkin, Cherry, Banana Cream, and Strawberry. There was only one s in the partial cipher, so...
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ohh I think I know the password! :D after racking my brain..
SPOILER (click to toggle)
Pieshake
Love may not always be destiny, But a Gift.

Aww, too bad that it's just gold and a weird artifact! I was hoping for something more exciting. I'm glad to have been of some help, though! <3
HELLO, I COME IN BEARING ALCOHOL!
Oh. I suppose that before drinking, we should have a proper introduction, right? I'm Ylana Black. I am one of Karen's assistants. Because even assistants need assistants, apparently. I wish I was jesting.
Anyway, I found PART of the activation code. Just part of it. Not the actual password. Sorry. If you expected better from me, you were...well, you were right.
This is the activation code aaaaaabbcccceeeeeehhiikkllmmmnnnoopprrrrrrsttuwyyy
This is so confusing, I know. I managed to get some hints from a old cipher, so do not worry!
Oh god, I'm horrible at this xD I shall try my hardest to figure this out though.
[tot=Victim]
Buying: CW's with lots of csc from here!

yay! I am so glad I figured it out!
and ty for the items
Love may not always be destiny, But a Gift.

OOOOOHHHHHH! I know the password!

Thanks Ylana for the drink!
Maybe they're very rare gold coins and you can still retire peacefully! Crossing my fingers that you'll find a buyer. ;)

I like anyone bearing alcohol :)
My results figuring out the word:
PW I think
Pieshake
[flower=jersey]
“Justice will not be served until those who are unaffected are as outraged as those who are.” - Benjamin Franklin
"Woe to those who make unjust laws, to those who issue oppressive decrees, to deprive the poor of their rights and withhold justice from the oppressed of my people, making widows their prey and robbing the orphan." - Isaiah 10:1-2

Thank you very much, Jeff! Happy to help with your password ;)

HELLO, I COME IN BEARING ALCOHOL!
Oh. I suppose that before drinking, we should have a proper introduction, right? I'm Ylana Black. I am one of Karen's assistants. Because even assistants need assistants, apparently. I wish I was jesting.
Anyway, I found PART of the activation code. Just part of it. Not the actual password. Sorry. If you expected better from me, you were...well, you were right.
This is the activation code aaaaaabbcccceeeeeehhiikkllmmmnnnoopprrrrrrsttuwyyy
This is so confusing, I know. I managed to get some hints from a old cipher, so do not worry!
Wow, that was a handful. Hopefully we can figure out the password soon!
You give me alcohol and then expect me to solve a puzzle? You have too much faith in my brain, but thanks for the vodka. XD hugs
You're back already? Ylana's on her coffee break, can I help you? Wait. You figured it out? I'm surprised to see you come back so fast!
Yay munchies! :D
[tot=Victim]
Buying: CW's with lots of csc from here!

You're back already? Ylana's on her coffee break, can I help you? Wait. You figured it out? I'm surprised to see you come back so fast!
I know who to contact if I forget my e-mail password again. Anyway, I'm Jeff. Thanks for your help. It seems like the chest's contents were revealed! How...practical. It's just gold and a weird artifact. I...I am not sure what this is, to be honest. I suppose I can give you some more munchies for your trouble.
You trying to sober me up with the munchies? >.> lol Love the creepy items!
Hello hello! Aaa a puzzle? Let's see..
Oh bummer, I wanted to thank her for the vodka. :) Hello Jeff. Hmm.. well, hopefully you can find out more about that artifact! I wonder what secrets there may be waiting to be uncovered.
Thanks for the snacks!
Hmm... a puzzle. After some thought, might the word in question be...
SPOILER (click to toggle)
Pieshake
Thank you kindly for the shot, Ylana! ♥
I got the mask one, but no alcohol or candy! Lina, why you rip me off!? But thank you for the mask :p
[edit] OMFG JLKJAD

I'm sorry Robin! You bring that olive oil here, and I'll make you some good Linguini Oliolio mmm Thank you for the candies. I was afraid you forgot about me, like they do you :(
And tell Jeff I said thanks, too! (But I like you better, but shh)
How mysterious! (studies treasure chest)
[tot=Gryphon]
Also got the alcoholic portion! Trying to figure the whole thing out, hm...

Hello. I'm Lina's second officer. My name is Karen Li, but people usually call me Kari for short. Either's fine. Anyway. Figure that I managed to find something in one of the pantries. It...well, it looks like one of these old treasure chests I gathered, back when I was dabbling in less-legal things...like piracy. ( i would rather NOT talk about this part of my life right now, thanks )
Thing is, we don't have a key for it. And, by key, we mean password.
Ylana is currently working on something to figure things out, but in the meantime, have the chest. Maybe you can...study it or something? I think you should hear from Ylana pretty soon
Nice to meet you Kari! Treasure is always exciting. I'll look it over and try to work out what I can. Thanks!