The 39 Clues is a series of adventure books that are published by Scholastic. The main part of the series is ten books revolving around the adventures of siblings Amy and Dan Cahill. They agree to the offer in their grandmother Grace's will and search for 39 clues scattered around the world. Rick Riordan wrote the first book and the main story arc, but other authors will write the rest of the books in the series. Six have been released and written (in order) by Rick Riordan, Gordon Korman, Peter Lerangis, Jude Watson,Patrick Carman, and Jude Watson (again). The others are being written by (in order) Peter Lerangis (again), Gordon Korman (again), Linda Sue Park, and Margaret Peterson Haddix.
The series also combines online gaming and card collecting along with the reading into a unique, interactive experience. Six cards come with every book, and more are sold separately in Card Packs. There are also activities related to the 39 Clues online.
There are also prizes for children between the age of six and fourteen. It is possible to win prizes by buying the books and playing the online game.
The books are also designed to teach history. The main characters are fictional, but in this series, almost every famous person belongs to the Cahill family. Because of this, Amy and Dan have to learn about these people to search for the Clues.
How do I find the Clues?
BOOKS: Each book contains one Clue. When you are done reading, go to the front of the book and take out your game cards. Type in the code found on each game card in your account on www.the39clues.com and your first Clue will appear.
CARDS: Game cards hold secrets you need to find the 39 Clues. Enter the unique code from your cards in your account on www.the39clues.com and they will be added to your online card collection. Hint: Some cards ARE Clues!
MISSIONS: Play online missions to receive top secret messages, crack codes, and reveal more Clues! Missions 0, 1, 2, 3, 4 and 5 are active and ready for you to test your skills.
Need practice? Play mini-games in Arena 39 to sharpen your Clue-hunting skills. Earn points that may lead to prizes*.
Go to www.the39clues.com to create an account, manage your card collection, complete missions, and be eligible to win prizes*!