The 39 Clues #1: Book 1: The Maze of Bones

Think you’ve gone everywhere books can take you? Think again. Books are going to a new place – but you have to follow the clues to get there. The Maze of Bones kicks off an amazing new concept which is part book and part game. Read the books. Unscramble the clues. Go on the web to play the game. Can you make it through the Maze of Bones and walk on the path to ultimate power?

Minutes before she died, Grace Cahill changed her will, leaving her descendants an impossible decision: “You have a choice – one million dollars or a clue.” Grace Cahill was the last great leader of the Cahills, the world’s most powerful family. Everyone from Napoleon to Houndini, Mozart to Benjamin Franklin, is related to the Cahills, yet the source of the family power is lost. 39 clues hidden around the world will reveal the clan’s secret – but no-one has ever managed to assemble them. Now the race is on. Amy and Dan Cahill must decide what’s important: hunting clues or uncovering what REALLY happened to their parents. Against them are the world’s most powerful enemies – other members of the Cahill clan. On their side are wits, courage – and YOU. Can you help them to find the truth about their parents… and the dazzling reward that awaits: a real cash prize of $10,000? If you love reading, you’ll love this. If you love gaming, prepare to go wild.

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Fun Stuff


  • 39 Clues Crack the Code

    Crack the code to reveal the secret message.

    Download 39 Clues Crack the Code
  • 39 Clues Number Puzzle

    Can you figure out this Franklin magic square? Insert the correct number in each empty square so each row and column adds up to 260.

    Download 39 Clues Number Puzzle

Recent reviews

  • loved it

    I have never read a book with such adventure and mystery before like this one, I really recommend this book to 10-18 year olds. Right now I am on the second series of the 39 clues, and have gathered a few ingredients to the master serum, and I hope people will read this book over and over again like I did.

    2 October 2014

  • Wonderful, absolutely brilliant.

    8 March 2014

  • loved it

    This book was exciting and adventurous. It picked it up from the library and soon loved it. Dan and Amy are both clever and aware of everyone else around them.

    Loads of bad things happen to them… Great Book. Great story.

    5 March 2014

  • alright, though a bit complex

    3 March 2012

  • loved it

    Exiting to read and it made me waunt to read on.

    16 September 2010

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Who's reading this?


  • Photo of Rick Riordan

    Rick Riordan

    Rick Riordan is blockbuster author of the best-selling Percy Jackson books, The Kane Chronicles and the Magnus Chase series.


    Rick won the Askews and Red House Children’s Book Awards for Percy Jackson and the Lightning Thief in 2006, and was named the US Children’s Choice Author of the Year in 2011.

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