The release date for the English version of 'One False Note' by
Gordon Korman is Dec 2008. If you enjoy this novel, it is available for buy as a paperback from Barnes & Noble or Indigo, as an ebook on the Amazon Kindle store, or as an audiobook on Audible.
Out of the rear cover:
The hunt is underway to locate 39 Clues that will protect a tremendous power, and Amy Cahill, 14, and her younger brother Dan are taken aback to be in the lead. They appear to be heading toward Vienna in their hunt, and they have a piece of coded Mozart sheet music that holds the secret to where the next Clue could be. However, with a gang of lustful relatives following them, Amy and Dan are unable to tell whether they are headed for success or a lethal trap.