Interest LevelReading LevelReading A-ZATOSWord Count
Grades 5 - 8Grades 2 - 8W4.185079

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As an incoming freshman, Percy isn't expecting his high school orientation to be any fun. But when a mysterious mortal acquaintance appears, followed by demon cheerleaders, things quickly move from bad to worse.

In this fourth installment of the blockbuster series, time is running out as war between the Olympians and the evil Titan lord Kronos draws near. Even the safe haven of Camp Half Blood grows more vulnerable by the minute as Kronos's army prepares to invade its once impenetrable borders. To stop them, Percy and his demigod friends will set out on a quest through the Labyrinth-a sprawling underground world with stunning surprises at every turn. Full of humor and heart-pounding action, this fourth book promises to be their most thrilling adventure yet.
Hardcover, 361 pages
Published on May 6, 2008 by Hyperion Books for Children
ISBN-10: 1423101464
ISBN-13: 9781423101468
154 Book Reviews
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  • girlpower4ever
    girlpower4everSunday, August 5, 2018 at 10:21 am55 stars
    Percy's friend Annabeth has wanted to lead a quest since forever. Kronos is rising, and so is his army. Their intention is to go through Daedalus's labyrinth and get Ariadne's string. That way, they can navigate the whole maze and go anywhere in the world, including attacking Camp Half-Blood. Annabeth must lead Percy, Grover, and Tyson through this mythical landmark and convince Daedalus not to give Luke's army the string. Meanwhile, tension between Annabeth and Percy is building. After Percy introduces his new mortal friend Rachel Elizabeth Dare, and meets Calypso, he gets a feeling he and Annabeth might be more than friends.
    • septembergirl
      septembergirlTuesday, June 5, 2018 at 6:57 pm55 stars
      I love these series so so so so so so so so so MUCH!!!!!!!!!!!!!!!!!! I could never put them down.
      • tessa2007
        tessa2007Friday, May 18, 2018 at 8:10 am
        this is a good book
        • ritlerbx
          ritlerbxWednesday, May 16, 2018 at 8:32 am55 stars
          I have read the entire first series in three days it's that good it kept me on the edge
          • goldwolftrainer
            goldwolftrainerTuesday, February 20, 2018 at 7:04 am55 stars
            This is one of the best books I have ever read!!!!
            • avery1032
              avery1032Saturday, January 27, 2018 at 11:46 am55 stars
              I read this book a few day's ago, and It's amazing. It was cool how Rachel knew just were to go in the Labyrinth.
              • bmei
                bmeiFriday, December 15, 2017 at 4:00 pm55 stars
                i have read all of Rick Riordan's books even the new ones.
                • bmei
                  bmeiFriday, December 15, 2017 at 3:58 pm55 stars
                  This book is so so so good. The author uses such good describing words so you practicully see a miny movie in your head. Also you sould read other books made by Rick Riordan.
                  • etaylor308
                    etaylor308Thursday, November 2, 2017 at 10:55 am55 stars
                    TOTALLY LOVE it. I love how smart annabeth is and WHAAA?! DAEDULUS!!! and i am on the second series so ya.
                    • severuscar
                      severuscarWednesday, October 25, 2017 at 2:04 pm55 stars
                      I like this book because it teaches you about greek myths and is very cool.

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