Bad? Of course not. :) The best stories write themselves.
Congrats to your first text that included necrophilia and "worked". XD But seriously, the scene with Dumbledore was horrifyingly great.

And now the idea doesn't want to leave my mind... ^^ Still playing around with it. I even wrote a second beginning, just to test the feeling. ^^"

I think Voldemort had at least some defences against this. Occlumeny *cough* Also I wonder about the soul of a Necomancer that goes this far - is it really possible that it takes no damage? Can souls rot?
... more topics to think about.