Help with high fantasy book from before the 00's

[Isabella]

Hi there! I'm trying to find a fantasy book that I read back almost ten years ago when I was a pre-teen. I'm not sure if it was YA or just regular fantasy (though I'm leaning towards just regular old fantasy book)

The cover art on the edition I had looked like a bridge over a pond (maybe) that showed the real world on one side and the fantasy world reflected in it... maybe

The plot reminded me a lot of the Disney movie Enchanted. Someone finds/gets pushed through a pond or portal to the real world from their fantasy world (maybe a princess? royal?)

I'm pretty sure this book was written prior to 2000, maybe as early as the 60's. I think it may have been pretty popular too. I think my dad may have even read it, and he was born in '68.


I know it's not a lot to go on, but any help or suggestions you have could be essential.

Thanks!