This was an incredibly well-written...and TERRIFYING...story. I can hardly blame Harry for going insane, especially with everything else he had been through. I read your note; I completely understand 'writing away the tension' and I have to say, this was a marvelous result of your efforts.
I only hope I never get something so inspirational again! You are one of the few reviewers who hasn't assumed the whole episode was in his head but that he was reliving the nightmare.