This is where I plug 'healer' again.

[ John says it like a joke, as though being able to mend the damage negates the unpleasantness of sustaining it. ]

That's what I hear. Again, I'm only three months in. We don't have much data to work from. Maybe you can help us crack it - why us, why doppelgangers, why a hedge maze? It's a long list.