Amy and Dan Cahill are back in the second exciting installment of The 39 Clues series. In the first book, the siblings are drawn into an exciting and often extremely dangerous hunt to find 39 clues. Following various leads, the kids travel all over the world to uncover hidden meanings and break secret codes. Together these clues will lead to extremely powerful secret knowledge.
After following the first clue, Amy and Dan are in search of information about another famous Cahill relative, Mozart. The kids also learn some very interesting information about Mozart's talented but virtually unknown sister. Onward to Vienna where the kids will uncover another piece of the puzzle. As always, danger, conspiracy, and relatives competing for the prize are just around the corner.
Read the book. Then, be sure to go online to the 39 Clues website. Even more games, puzzles, and clues are available.