<DIV>Could Amy and Dan's biggest enemy be . . . a friend? The 39 Clues Book 6 challenges everything you thought you knew about the Clue race.<br><br>FORMAT: 4 CDs, Unabridged<br>NARRATOR: David Pittu<br><br><br>JOIN ANYTIME TO PLAY FOR THE CHANCE TO WIN!<br><br>The 39 Clues gets deadly. Book 6 takes Amy and Dan across oceans on the trail of a famous aviator, but they find more than they're looking. Their enemies are becoming more vicious, and the truths they discover more crushing than ever. The Cahill family will stop and nothing to get the 39 Clues . . . and this time, the competition is fatal.</div>