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Most of them contain secret information in the 'TOP SECRET" button thing. Most of the time you have to crack a code to find that. Also, the cards lead to clues. if you get a card combo, you may perhaps get a clue. not all 39 card combo's contain clues. you can also get the 39 clues card pack with 16 cards in it.
What else can I help you with?
What are 39 clues cards?
they are cards that you can unlock clues and replicators for.
How do you get cards The 39 Clues?
The contest for free The 39 Clues cards expired in 2011. To get cards now, you must purchase them.
What is the point of the cards in 39 clues?
the books will only give you ten clues so the cards fill in the gaps along with the 39 clues website
Rare 39 clues cards?
a grate card code for the 39 clues is P32979TXXP
Cards of the 39 clues?
P4cmrfpmxp
Do you have any 39 clues cards?
this is a card that is reusable... P2W7RRJ4XP share it with ur 39 clues friends!
What are the 39 clues cards codes?
P2jjwkcjxp
How many 39 Clues cards are there?
447
What are 39 clues agent cards?
P2c2rd4pxpP22D3743XPP2HFRNGRXPp2hfmmpmxpP369T2X9XPP39FFM3PXPP3JGTT73XPP249F7TDXP
What are Agent Cards in The 39 Clues?
P32d3ff9xpp2c2rd4pxpp2hfrngrxpp2hfmmpmxpp369t2x9xpp39ffm3pxpP3JGTT73XPP249F7TDXPP3F2M3NPXP
Can you get all 39 clues cards by a code?
no
Can you reuse 39 Clues replicator cards?
No
