Ez! just click add cards
u dont
You can't; you can only add cards.
To add book clues, you have to enter the card code from the cards you get in the book.
P2fhhndhxp COMPLETE MISSIONS. ADD CARDS. UNLOCK CLUES.
Go into my cards press add cards and add a freinds card. my one is P2KWDD6CXP
click on their card and press add
don´t combine cards, you click combos under Add Cards
you go to my cards and go to add cards. then type in your code.
To add books on The 39 Clues website, you can browse through their online store and select the book you want to purchase. Add it to your cart and proceed to checkout to complete the transaction. You will then have access to the digital version of the book on the website.
Play games, add cards, and complete missions to get clues and rank.
You need to buy the cards in books but you can add my card code by view add cards in the my cards section. My code is P2MRHFJGXP and then you see my card
You get agent cards my clicking 'My Cards' and then 'Add Cards' and then typing in the agent card code. Mine is P3WJ46RRXP.