Interest LevelReading LevelReading A-ZATOSWord Count
Grades 4 - 8Grade 5n/a4.749849

Something strange is happening at the Clarksville City Zoo. Late at night, monkeys are scaling the walls and searching the neighborhood—but what are they looking for?

Noah, his sister Megan, and their best friends, Richie and Ella, live next door to the zoo. Megan is the first to notice the puzzling behavior of some of the animals. One day Megan disappears, and her brother and their friends realize it's up to them to find her. Their only choice is to follow a series of clues and sneak into the zoo. But once inside, will they discover there's much more to the Clarksville City Zoo than they could ever have guessed?

Hardcover, 304 pages
Published on June 1, 2010 by Greenwillow Books
ISBN-10: 0061987506
ISBN-13: 9780061987502
6 Book Reviews
Add a Rating
  • UnicoonThursday, September 12, 2019 at 11:06 am
    This book is the best!
    • imabookworm3
      imabookworm3Friday, July 26, 2019 at 11:19 am55 stars
      I loved this book so much! It was adventurous and had mystery at every turn. My favorite part was when they discovered way the secret zoo and why it had too be kept a secret. the only thing that I didn't like was how it ended on a cliff hanger.
      • glitterkitty
        glitterkittySaturday, September 9, 2017 at 3:53 pm55 stars
        Overall, this is an awesome book because this book has animals in it - I am an animal lover. This is a fantasy book and I am a fantasy book lover. Hope you guys like it!
        • kede
          kedeMonday, February 24, 2014 at 8:08 am55 stars
          I decided to read this book because it looked so entertaining that it caught
          • giraffesroc
            giraffesrocMonday, February 6, 2012 at 1:24 pm
            This is an awesome book!!! Its very creative : fans of fantasy and adventure will love this. Animal lovers will also like this book. Enjoy!
            • mnkulu
              mnkuluFriday, August 23, 2013 at 4:39 pm
              I actually met the author of this book. I love his series