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 power? After a whirlwind race that's taken them across five continents, Amy and Dan now face the most the difficult challenge yet - a task no Cahill has dared to imagine. When faced with changing the future of the world, can two children succeed where 500 years' worth of famous ancestors have failed?
This is number 10 in 39 Clues .
There are 336 pages in this book. This book was published 2010 by Scholastic US .
This book is in the following series:
This book has been nominated for the following award:
Buckeye Children's Book Award
This book was recognised in the Grades 3-5 category by the Buckeye Children's Book Award.
This book features the following characters:
Dan Cahill
This book features the character Dan Cahill.
Amy Cahill
This book features the character Amy Cahill.
