Haddix, Margaret Peterson.

Summary: Amy and Dan Cahill face their greatest challenge on their quest to find the thirty-nine clues, but in order to discover the secrets of their lineage they will have to make a choice that could impact the world's future.

Format: text

Publisher / Publication Date: Scholastic 2010

Copies Available at Woodmere

1 available in Juvenile Fiction Series, Call number: J FIC THI

Copies Available at Peninsula

1 available in Juvenile, Call number: JFIC CLU