i'm working of a next gen fic at the moment and have an idea that Barty Crouch Jr is revived and goes after albus, thinking he is Harry.
My idea for how to do this is that a prisoner in Azkaban kills a dementor (I need to flesh this out a bit more) and then Barty wakes up in St Mungos' (Demented ward lol).
The death of the dementor released the souls it had consumed and the soul just happened to be Barty's.
Wow now this sounds far fetched.
Does anyone think this would be possible????