
Throughout the hunt for the 39 Clues, Amy and Dan Cahill have uncovered history's greatest mysteries and their family's deadliest secrets. But are they ready to face the truth about the Cahills and the key to their unmatched power?
After a whirlwind race that's taken them across five continents, Amy and Dan face the most the difficult challenge yet — a task no Cahill dared to imagine. When faced with a choice that could change the future of the world, can two kids succeed where 500 years worth of famous ancestors failed?
- Ages
- 8, 9, 10
- Interest Level
- Grades 3 - 5
- Grade Level Equivalent
- 4
- Lexile Measure
- 660L
- DRA
- 50
- Guided Reading
- T
- Genre
- Adventure, Mystery and Suspense, Series
About the Author
Margaret Peterson Haddix
Margaret Peterson Haddix is the author of many memorable novels for young readers. Her work has been honored with the International Reading Association Children's Book Award, the American Library Association Best Books for Young Adults and Quick Pick for Reluctant Young Adult Readers citations, and state readers' choice lists in sixteen states.
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