Right the question is this, I have several plots in my overcrowded bonce already, but many, many moons ago I read a Magnificent 7 fic set in the old west, and the plot of said fic just screamed Supernatural. Now I want to re-work the story in my own way, so I don't want to go back and find it, simply because if I read it I'm scared it will be a straight copy. And I don't want to do that to another author, how would I go about this, do I credit where I read it? or even the author's name if I remember it, or better yet try and contact them. I really just don't want to tread on someone's toes, but honestly the story is pure Sam and Dean and I would love to attempt it.
So if a kind soul could help me out it would be very appreciated.