Interest LevelReading LevelReading A-ZATOSWord Count
Grades 4 - 8Grades 3 - 6n/a5.370717
It’s a murder mystery on the moon in this humorous and suspenseful space adventure from the author of Belly Up and Spy School.

Like his fellow lunarnauts—otherwise known as Moonies—living on Moon Base Alpha, twelve-year-old Dashiell Gibson is famous the world over for being one of the first humans to live on the moon.

And he’s bored out of his mind. Kids aren’t allowed on the lunar surface, meaning they’re trapped inside the tiny moon base with next to nothing to occupy their time—and the only other kid Dash’s age spends all his time hooked into virtual reality games.

Then Moon Base Alpha’s top scientist turns up dead. Dash senses there’s foul play afoot, but no one believes him. Everyone agrees Dr. Holtz went onto the lunar surface without his helmet properly affixed, simple as that. But Dr. Holtz was on the verge of an important new discovery, Dash finds out, and it’s a secret that could change everything for the Moonies—a secret someone just might kill to keep...
Hardcover, 352 pages
Published on September 16, 2014 by Simon & Schuster Books for Young Readers
ISBN-10: 1442494867
ISBN-13: 9781442494862
26 Book Reviews
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  • book_nook
    book_nookSaturday, August 15, 2020 at 10:50 am
    A must read! If you like mysteries or other books by Stuart Gibbs then you will love this! Plus if you want to be an astronaut you are not going to the moon before reading this! :)
    • ashnoelle1112
      ashnoelle1112Sunday, July 19, 2020 at 8:11 pm55 stars
      Awesome
      • noelle112
        noelle112Friday, July 17, 2020 at 10:58 pm55 stars
        It's a great book I really enjoyed it . It was very exciting and science fictiony
        • galactic0
          galactic0Wednesday, June 10, 2020 at 11:00 am44 stars
          This book is very cool and interesting. It has a unique concept about how living in space isn't as fun as it is in space movies like in Star Trek or Star Wars. it may not have as much action as the other book series from Stuart Gibbs that I'm reading called Spy School, which can make the book a little boring at times. I still enjoyed it nonetheless.
          • sylvie55555
            sylvie55555Sunday, June 7, 2020 at 3:14 pm55 stars
            In this book Dash Gibson is tired of living on the moon. Everyone told him it would be a super great experience, but in reality it's not. But what can Dash do? When a beloved scientist, Dr. Holtz,gets murdered, Dash knows he needs to solve the case. He heard Dr. Holtz mention a big discovery the day before he died, but no one believes him. Will Dash be able to solve the case? Read the book to find out!
            • thevenusflytrap
              thevenusflytrapTuesday, February 18, 2020 at 11:27 am55 stars
              Space Case is an overall fantastic book, with many plot twists and bumps in the road to spice it up. The mystery elements combined with Sci-Fi, space-y elements make this an excellent choice for your next read.
              • 13iamgroot
                13iamgrootTuesday, August 20, 2019 at 5:38 pm33 stars
                Dashiell lives on the moon. You might think that sounds super cool. Well Dash will tell you otherwise and give you all the reasons that it isn't, in this hilarious novel by Stuart Gibbs. No one believes Dash when he thinks that there has been a murder, so he decides to investigate himself. With the urging of temporary resident on Moon Base Alpha, Zan, and his new friend Kira, Dash goes full scale investigation because of a conversation he heard in the bathrooms. In the end, he finally busts the murderer and learns that Zan is not what she seems. Anyone ages 7 to 14 will love this book and the rest of the series.
                • sylvie55555
                  sylvie55555Friday, July 19, 2019 at 4:16 pm55 stars
                  This is the first book in the moon base alpha series written by Stuart Gibbs. 12 year old Dash lives in space. Really, he does. Well... he has for the past few months anyway. When Dash and his family was first offered to go into space, they thought it would be very exciting. But after arriving in space they start to realize that it might not be as exciting as they thought... in fact, it might be down right boring. So when Dash finds out that someone might have been murdered where he and all the other scientists in space reside, Dash is determined to find out who did it. In fact, he's decided he must find them before the next space ship leaves for Earth... or they'll be trapped with the murder for another few months. Will Dash find the murderer? Read the book to find out! Stuart Gibbs is an amazing author and this is a wonderful series, as well as the Spy School and Fun Jungle series! Hope you like this book!
                  • Spaced OutThursday, December 20, 2018 at 1:35 pm
                    Hi! I'm in 5th grade! I love this book. It gave me a nightmare or two, but it was still enjoyable!! :D
                    • tancred_torsson
                      tancred_torssonMonday, September 24, 2018 at 6:03 pm55 stars
                      This is a great book. I love how Stuart Gibbs always includes so many surprises and twists that you don't expect. Also, Dash is super smart. Love this book! :)