get all of them by going to "My Cards" then go to "Add Cards" and put
LuciansRok
The card that can be used to unlock all 39 Clues Cards is to put in P63726DJXP
You can purchase card packs with codes for The 39 Clues. Examples of codes are: G69CTWHC9T, G69CKR3K9T, 223M6DTNX2.
p2xntjfdxp
P3tnp2cdxp (all capitals)
There are too many to be solved
p27v7ao96w
Play missions, go in arena 39, and enter card codes to get clues. Get all 39!! ~James the Janus Check out this reusable card code! P3GJW7JEXP
22xf2mjpx2
P29w72kwxp
P47wkjntxp
P2w62x67xp
I have it. The card code is....... 776FKKFCF2