There are too many to be solved
we see all
The card that can be used to unlock all 39 Clues Cards is to put in P63726DJXP
p2xntjfdxp
P3tnp2cdxp (all capitals)
get all of them by going to "My Cards" then go to "Add Cards" and put LuciansRok
These can help actually TRUSTNOONE MANINBLACK that is all i know
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
I would tell you but not all the clues are out yet. There are 10 clues from all the books (only 6 books are out) and 10 clues from online missions (not all are out yet) and certain cards once you enter them give you clues (all so far are 4 rarity) and card combos (not all card are out yet) JANUS
Death in Syracuse. be sure it's all capitalized like so, or it may not work.
There is no such code, however, by buying cards and completing missions you can get clues. I would post some ultra-rare card codes, but I don't have any that I haven't already used. My top tip is to save your card replicators, because they can be used for those hard-to-find ultra-rare cards. You can give the codes to this site because the codes are reusable.
P4D292PKXP p22229f6xp p222c7pjxp p222hg3dxp p222jcdhxp p44dcx4kxp these are all agent cards this is a non agent card the spaz - g69hjp9g9t
The answer to the puzzle in The 39 Clues book 3 is "Marie Curie."