What would happen if in the end of LWW Edmund never left narnia? Well this is my take on what would of happened.

What if voldemort took harry from his parents insted of killing them? what if he wanted to train harry to be the perfect weapon. taken from the family he never had harry is forced to become what he hates the most. but if given the choice will he turn to the light or remain in the dark, he only place he knows?