The 39 Clues: Unstoppable

4 books in series
4.5 out of 5 stars 71 ratings

The 39 Clues: Unstoppable 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
Not an Audible member?
From £7.99/month after 30 days. Renews automatically. See here for eligibility.
Product list
  • Book 1

    Regular price: £11.89 or 1 Credit

    Sale price: £11.89 or 1 Credit

  • Book 2

    Regular price: £10.00 or 1 Credit

    Sale price: £10.00 or 1 Credit

  • Book 3

    Regular price: £10.00 or 1 Credit

    Sale price: £10.00 or 1 Credit

  • Book 4

    Regular price: £11.29 or 1 Credit

    Sale price: £11.29 or 1 Credit