Books upside down

I understand now that books have an upside down and a right way up. And I can see this. When I was little, I did not see it, but now I see it immediately and I can turn the book around.

But this book has a picture that startles me. The whole book is the right way up, only this page is wrong. I need to turn the book, but then the other pictures are wrong.

It is a bat, my mama says. They sleep upside down in trees. Strange.....