Who is the protagonist of The 39 Clues?
One False Note
One False Note is the second book in "The 39 Clues" series. It is written by Gordan Korman, and was published by Scholastic on December 2, 2008. Following the events of "The Maze of Bones", the protagonists Amy and Dan Cahill learn about Mozart and travel to Vienna, Austria to search for the second clue in the 39 Clues competition. "One False Note" entered the Children's Books New York Times Best Seller list at number one on December 21, 2008 and stayed on the list for children's chapter books for 12 weeks.
The 39 Clues
Scholastic has expanded the 39 Clues universe with several books. In 2010 Scholastic published "Agent Handbook", which explores the techniques that the clue hunters in the series use to find clues, and "The Black Book of Buried Secrets", which provides more information about events in the series. In the last week of December 2011, the Scholastic editorial team released seven short stories as part of "The 39 Clues: Rapid Fire" e-book series. The editorial team has also released "The Cahill Files", which includes "Operation Trinity", "Spymasters", and four e-books. As part of the multimedia interactive experience to promote the series, Scholastic includes six cards in each book of the 39 Clues series. Each card leads to one online clue, which readers can unlock by entering the code on the cards on their 39 Clues account online.