The first book in the #1 bestselling phenomenon sends readers around the world on the hunt for the 39 Clues! Minutes before she died Grace Cahill changed her wi

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." Grac

39 clues to unscramble. One fabulous prize to win. It's a riddle, a book and a game to play. Are YOU up to the challenge? Written by celebrated author Rick Rior

The graphic novel adaptation of the mega-bestseller that launched a global phenomenon! Minutes before she died Grace Cahill changed her will, leaving her decend

The Cahill family has a secret. For five hundred years, they have guarded the 39 Clues - thirty-nine ingredients in a serum that transforms whomever takes it in