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.
Storm Warning (Park novel)
Storm Warning is the ninth book in "The 39 Clues" series. It is written by Linda Sue Park and was released on May 25, 2010. The geographical coordinates that appear on the ship on the book's cover (18 degrees, 15 minutes north; 77 degrees, 30 minutes west) indicate a point about six kilometers southeast of Albert Town, Jamaica.