The Wonderful Flight to the Mushroom Planet

The Wonderful Flight to the Mushroom Planet by Eleanor Cameron (1954) - This is the first of the Mushroom Planet series, about a small, secret planet orbiting around the Earth. I read it when I was in grade school, and again May 2016. It's interesting how much science there is in the book, for 1954, considering where we were with manned space flights at that time. The strangest thing about the story is the question of how much of this is real and how much imagined, which is never really answered, for sure. Or maybe I'm confused. I know I was confused when I read these books in grade school (there are five in the series) - they kind of freaked me out! Eleanor Cameron wrote a lot of books, including a series about a young woman named Julia Redfern, which I might read later.