Fabulous. THIS is what a kid's book about strange things and universe-travel should be like. And so nice to see that the adults didn't come in and *save* the kids—no, no, instead the young girl is the hero and saves the day, the brother and the world. Just brilliant. Why have I never read this before? Especially seeing as it is from the early 1960s. Well, I have now, and I am glad.