Death's Mediator

What if they got it wrong? What would happen if the Potters lived with twins and chose the wrong one, what would happen? the repeat of history will destroy all that the light what. Is the dark truly evil and do they want to destroy Mother Magick? Fem!Harry, foursome and weasley bashing. I am completely aware of the grammatical errors in ch. 4, I am just to lazy to fix it.