The Demon of the Blacks

A man from our world is offered a scandalous deal, landing himself in the world of Harry Potter. What will be his impact on that world when he belongs to arguably the darkest family of all?

Author's Note:
Hey everyone! Thanks for checking out my FanFic! I'll likely have quite a few grammar errors in there despite me checking before I post so don't crucify me too much.
I don't have an extensive plan set up for the story beforehand so expect a chapter every two or three days at the very least, though I may post more depending on my delicate author feelings. Peace out for now!

Sincerely,
Your soon to be favorite author, SmithingWriter