What an odd request. Before you asked, I actually was looking for pictures of this Return to Oz house or even the book itself. I would think that there would be Wizard of Oz collectors who would want this sort of thing so I'm sure it exists somewhere but I can't find anything.

I must have seen Return to Oz as a kid if I knew about the Nome King. I don't think that I saw all of it. And it was on tv. What was it rated? PG? That's surprising. I think that PG-13 was recently added to the system at this time. Return to Oz had some scary moments and maybe should have been PG-13.

Although, I'm not sure that's the test. It's about nudity and profanity and violence. And anyway, Wizard of Oz is surely rated G and that also has scary moments. Not as scary, I guess. That scene where that witch has a room full of heads, for example.

But I saw the whole thing a few years ago and yeah, it's good, I guess.

I'm surprised that there aren't more Oz books. I mean, there's loads of books in the series, it's public domain, and people have enjoyed the original film for over 50 years. I don't think Return to Oz was particularly successful so that's surely part of the answer.