Haddix, Margaret Peterson.

The 39 Clues: Into the gauntlet / Margaret Peterson Haddix. - New York : Scholastic, c2010. - 327 p. ; 20 cm. - 39 clues ; bk. 10 .

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?

ISBN: 0545090687 9780545090681 9780545060509 (scholastic)

LCCN: 2010924652

Subjects--Topical Terms:
Brothers and sisters
Family secrets
Ciphers
Mystery and detective stories.
Children's literature

LC Class. No.: PZ7.H1164 / Int 2010