Regular price: $12.95

Membership details Membership details
  • A 30-day trial plus your first audiobook, free.
  • 1 credit/month after trial – good for any book, any price.
  • Easy exchanges – swap any book you don’t love.
  • Keep your audiobooks, even if you cancel.
  • After your trial, Audible is just $14.95/month.
Select or Add a new payment method

Buy Now with 1 Credit

By confirming your purchase, you agree to Audible's Conditions of Use and Amazon's Privacy Notice. Taxes where applicable.

Buy Now for $12.95

Pay using card ending in
By confirming your purchase, you agree to Audible's Conditions of Use and Amazon's Privacy Notice. Taxes where applicable.

Publisher's Summary

The Cahill family has a secret. For five hundred years, they have guarded the 39 Clues - thirty-nine ingredients in a serum that transforms whomever takes it into the most powerful person on earth. If the serum got into the wrong hands, the disaster would rock the world. So certain Cahills have always made it their mission to keep the serum safe, buried, locked away. Until now. Thirteen-year-old Dan Cahill and his older sister, Amy, are the latest guardians of the Clues. They think they've done everything right, but a tiny mistake leads to catastrophe. The serum is missing and Dan and Amy have to get it back and stop who stole it…before it's game over. For everyone.
PLEASE NOTE: When you purchase this title, the accompanying reference material will be available in your Library section along with the audio.
©2013 Jude Watson (P)2013 Scholastic, Inc.
Show More Show Less

Customer Reviews

Most Helpful
5 out of 5 stars
By Crystal on 01-07-14

Book 7 After Cahills vs. Vespers Book 6

This was not easy to find. It is another story thread after the Cahills vs. Vespers book 6. The exciting story continues as Amy and Dan struggle against evil. The narrator did a good job.

Read More Hide me

4 of 5 people found this review helpful

5 out of 5 stars
By Amazon Customer on 03-24-15


With David Pittus naration, itbis hard not to qant to find outwhatbis happening next in the Cahills and their loved ones.

Read More Hide me
See all Reviews

Customer Reviews

Most Helpful
4 out of 5 stars
By Rosemary on 07-09-14

really great series for age 10 to about 13

What made the experience of listening to The 39 Clues: Unstoppable the most enjoyable?

this is one of a huge series which have engrossed my 13 year old dyslexic daughter.
They are well read and fast moving.

What other book might you compare The 39 Clues: Unstoppable to, and why?

is a combination of a mystery and a thriller really following some teens on a quest which twists and turns through the series

Did you have an emotional reaction to this book? Did it make you laugh or cry?

no but made me want to listen and I am 56! my daughter laughed out loud and begged me to get the subsequent books as couldn't wait for the credit to be available ..

Read More Hide me
See all Reviews
© Copyright 1997 - 2018 Audible, Inc