As the race to find the 39 Clues builds to its explosive finish, Amy and Dan must explore an ancient culture and steal a Clue guarded by thousands of the worlds best-trained soldiers. Its the most dangerous Clue search yet. As their enemies crowd in, Amy and Dan find themselves separated for the first time ever. The choice lies before them find the next Clue, or find their way back to each other. Be the first to find out where the next Clue is! There are three messages hidden on the cover of Book 8: The Emperors Code. Go to www.the39clues.com/theemperorscode for a blow up of the cover, enter the secret messages you find, and unlock a page from The Emperors Code that reveals the whereabouts of the next Clue.