My question is what fantasy series had two worlds next to another but in different dimensions. In certain places you could pass from one to another. One world was normal, there were the rich and the slaves. The other world was magical.
They were at least 25 to 30 years ago. I enjoyed them but I can’t muster the google-fu to find them or the author. Help please. I’ll prob. go back to reread them if I can find them.