Interest LevelReading LevelReading A-ZATOSWord Count
Grades 4 - 8Grades 5 - 10W7.0118959
The international sensation! The story of an outcast boy, his eccentric dad, and the scary underground world they discover through secret TUNNELS.

14-year-old Will Burrows has little in common with his strange, dysfunctional family. In fact, the only bond he shares with his eccentric father is a passion for archaeological excavation. So when his dad mysteriously vanishes, Will is compelled to dig up the truth behind his disappearance. He unearths the unbelievable: a subterranean society that time forgot. "The Colony" has existed unchanged for a century, but it's no benign time capsule of a bygone era--because the Colony is ruled by a merciless overclass, the Styx. Will must free his father--is he also about to ignite a revolution?
Mass Market Paperback, 496 pages
Published on February 1, 2009 by Scholastic
ISBN-10: 0545078814
ISBN-13: 9780545078818
7 Book Reviews
  • unicornkittycat
    unicornkittycatalmost 4 years55 stars
    I really liked this book because it was very exciting, you never know whats going to happen next. I was also kind of scary, but I recommend this book to maybe ages 10+ Happy reading! :3
    • riordianfanatic
      riordianfanaticover 5 years55 stars
      I read this book because I was told at my school that it was a young adult book and I made a show of buying it and then reading it so that I could be rebellious. Now, I absolutely love this book! I'm halfway through with it!
      • Bookbook over 5 years
        I love it
        • pirateguyover 6 years
          I am reading this AWESOME BOOK!!!!
          • smilecrazy
            smilecrazyalmost 7 years
            • zendayafan460
              zendayafan460almost 7 years
              soooooooooooooooooo good.<3
              • kevirino
                kevirinoover 8 years55 stars
                I really liked this book it had many twists in the story that you would not expect in any book.