The Magic Tree House series is a childhood favorite of mine. The series is about a brother and a sister who have a tree house and a magic book that take them to different places. In this particular book, the brother and sister travel to the moon. While there, they learn about the moon and space. After learning so much, they have to find a way home. I can use this book in my classroom to incorporate science into my reading instruction. This book could be used in grades 1 through 3. The grade level of this book is a 2.1.