How to unlock a Club Penguin book code
If you have a book, first click on the "I've got a Book" tab, and find the code word by following the directions given in the question. Be sure to enter the word exactly as it appears in the book.
Enter the word correctly, and you'll receive a special book item for your penguin and some coins.
You can only have one book item - any further book codes you enter will give you coins.
Treasure Book items work for both members and free accounts. If you have a code that doesn't work, or experience any other difficulties, please contact Club Penguin Community Support.