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The tenth book in the 39 Clues series, Into the Gauntlet follows Amy and Dan...

The Cahills aren't the only family searching for the Clues. . . .The Cahills thought...

"One False Note" follows Amy and Dan in their quest through Vienna and Venice, solving...

The 39 Clues is a series of adventure novels written by a collaboration of authors,...

The fourth book in the bestselling The 39 Clues series. Following the events of the...

"In Too Deep" follows Amy and Dan Cahill in Australia as they navigate dangers within...

The seventh book in the bestselling series, The 39 Clues. The Cahills travel to South...

The Emperor's Code is the eighth book in The 39 Clues series. The book follows...

In this ninth installment of the thrilling adventure series, Amy and Dan Cahill travel to...

Are you ready to save the world? The bestselling series returns with an adventure spanning...