Interest LevelReading LevelReading A-ZATOSWord Count
Grades 4 - 8Grades 3 - 5T4.547493
Charlie and the Chocolate Factory meets A Night in the Museum in this action-packed New York Times Bestseller from Chris Grabenstein, coauthor of I Funny, Treasure Hunters and other bestselling series with James Patterson!

Kyle Keeley is the class clown and a huge fan of all games—board games, word games, and particularly video games. His hero, Luigi Lemoncello, the most notorious and creative gamemaker in the world, just so happens to be the genius behind the construction of the new town library. Lucky Kyle wins a coveted spot as one of twelve kids invited for an overnight sleepover in the library, hosted by Mr. Lemoncello and riddled with lots and lots of games. But when morning comes, the doors stay locked. Kyle and the other kids must solve every clue and figure out every secret puzzle to find the hidden escape route!

Don't miss the next puzzle-packed adventure—Mr. Lemoncello's Library Olympics—coming in January 2016!

"Discover the coolest library in the world." —James Patterson, #1 New York Timesbestselling author


34 STATE AWARDS AND COUNTING -- INCLUDING THE SUNSHINE STATE AWARD!

Starred Review, Booklist

* “An ode to libraries and literature that is a worthy successor to the original madman puzzle-master himself, Willy Wonka.”

Starred Review, Kirkus Reviews

*"Full of puzzles to think about, puns to groan at . . . this solid, tightly plotted read is a winner for readers and game-players alike."
Paperback, 336 pages
Published on June 24, 2014 by Yearling
ISBN-10: 0307931471
ISBN-13: 9780307931474
220 Book Reviews
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  • StudentMonday, May 6, 2019 at 12:01 pm
    I love this book! But be careful...it is nothing like the movie!
    • pandimeep
      pandimeepMonday, May 6, 2019 at 9:41 am55 stars
      I LOVE THIS BOOK!!
      • StudentMonday, May 6, 2019 at 8:22 am
        I absolutely LOVEd reading this book! Be careful...the movie and the book are not the same.
        • singing_sloth
          singing_slothWednesday, April 10, 2019 at 4:38 pm55 stars
          I LOVED THIS BOOK!! It test your mind while reading and having fun with the characters! It makes you feel like your trying to escape from the library too!
          • lunalovegood8
            lunalovegood8Sunday, April 7, 2019 at 5:22 pm55 stars
            It was a really fun book!
            • jdoodles35
              jdoodles35Thursday, February 28, 2019 at 4:09 am55 stars
              This book is practically impossible to put down! The characters are so charming and witty! It was never really Chris Grabenstien telling the story, it was always Mr. Lemoncello.
              • lightninggirl
                lightninggirlTuesday, January 29, 2019 at 10:07 am55 stars
                Love it!!! I read this in fifth grade and the author actually came to my school!
                • sasscat
                  sasscatSunday, January 27, 2019 at 12:30 am55 stars
                  100% imagination 😁!!!
                  • Travis JrThursday, January 17, 2019 at 7:45 am
                    5 Stars!!!!!
                    • Travis JrThursday, January 17, 2019 at 7:45 am
                      I love the book so much i cant stop reading it!