I've been thinking about a couple of things I read/saw when I was a kid, that I'm wondering if anyone else remembers. One was a series of books about a group of kids who traveled in a spaceship constructed from a hollowed out asteroid. They were separated from their parents for some reason, but did once meet up with them. In one story, they trained their cat to operate the ship's weapons systems by dangling balls around its cradle and getting it to swipe at them.
The second thing was an animated series, which brings to mind Jamie and His Magic Torch, in which children were snatched during the night by a light/portal which appeared under their beds. It was managed by some sort of devil character.
Just remembered another, a society that lives in an underground city seen from the point of view of one, eventually two, kids. As the story develops, they make their way up through the levels of the city, eventually finding the priviledged surface levels and ultimately the outside, where they learn that the city is supplied somehow from the outside world.
Does anyone know what these things were? Also, perhaps you'd like to share your own memories that the reat of us could explain.