39. Each book has 1 clue.
It depends on how many missions and books are out and how many cards you have.
There are 11 original books in "The 39 Clues" series that are possible to get in hardback. These books are written by various authors and follow the story of two siblings in a worldwide hunt for 39 clues that will determine the family's power and fortune.
the boy in the 39 clues books is called Dan cahill and the girl is called Amy Chaill
only 39 clues... hence no 41st clue
There is going to be 39 books. No there isn't. It's only going to be ten. If you haven't counted, Amy and Dan have found 17 clues in the entire series
239 pages in book one
You have to play all the missions and get all the books and the card packs
Buying Books
Read the books. Collect the cards. Play the game.
you must have all 39 Clues, which you can get by: play missions from the 39 clues website, reading and registering the books online, and entering cards that you can get from the books or card packs. sorry, but i haven't even done it.
I played that game. You have to solve the clues online. But if you want the hand held card. You have to go and buy the 39 clues books. There should be 10 books.
So far there are ten books. Since the 39 clues series is a best seller, they might make more. My Agent Code Is: P39FFM3PXP And One Last Thing, Lucians Rule!