Switchcraft

Two worlds.

Two children.

One old.

One new.

That's how it's been for the past millennium, and that's how it's planned to stay.

The two worlds, separated only by a thin barrier, are as different as chalk and cheese. One of the worlds is far behind the other technology wise, but has magic. The other has no magic, but has technologies far more advanced.

Two children from different worlds, somehow, as babies, were switched. Struggling in a world they where they don't fit in, the pair are desperate to get back to their own home. But that has complications of its own.

As the two struggle in their different worlds, a larger plot seems to be afoot. Who switched them? And why?

Any relation to persons dead or alive is either intentional or unintentional, please enquire if you're not sure whether it's intentional or not.