Tom Swift Young Inventor #3 The Space Hotel by Victor Appleton*

My third grader read this book to himself.  He is really enjoying this series.
Since Tom's father's business, Swift Enterprises was a major investor in the world's first space hotel (APOGEE), Tom and Sandy (his young sister) are one of the first guests to view it.  Of course, as he and his sister enjoy the new technology, Tom uncovers a sinister plot he must foil.
*Highly recommend.
*Borrowed from the library.
Reading Level: 5.7