[quote=@Guess Who] No, your character and the evil version can be any age. When I originally created the prompt I had it in mind that they would be the same age, but I see nothing wrong with their being a gap between them. [/quote] No, what I mean is if their future self warps to the 'past' or being to present for us. And say they happen to 'kill' their past selves. Wouldn't that create a time paradox? What I'm asking is, if it'd be acceptable or make more sense if our characters' evil selves can be from AUs instead of future timelines.