
Each of the 11 books comes with 6 game cards that reveal important information about the Cahills and unlock a Clue! Enticed by adventure, they take the clue and embark on a journey around the world, traveling from place to place, seeking the 39 clues to reveal the treasure that is their true inheritance. In the first series, The Clue Hunt, Amy and Dan Cahill are given a choice after their grandmothers death a million dollars as inheritance, or a single clue that could lead to a greater fortune-and a much greater danger. Based in present time, the series weaves together adventure, famous historical events, people, and geography.


The 39 Clues is a set of four written by a combination of authors.
