If you mean the code in the first mission, you need to find the paper in the pet shop and decode it with the code your spy bar.
This question is unanswerable, sorry.
You have to unlock 5 coin codes
Club Penguin SGary
To unlock cards you go to the Disney store then you enter the code on unlock items online on club penguin
find the blue book by going onto unlock items online on club penguin then click on i have a book then click on the stoaway then answer the question if you have the book if you don't have the book get it
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Club Penguin unlock goodies!
To unlock a Treasure book on Club Penguin, you need to purchase a Club Penguin toy. This toy comes with a code you can redeem to unlock a certain treasure book.Double Mvp
There are many club penguin toy codes.
You can unlock them with stuffed club penguin characters
You have to buy club penguin toys at the store and then you will get codes.
First you have to be a member. Then you enter the secret cave and unlock it then its there