The Impostor in the Room, Part 3

There were many things, many, many things I've still yet understood, and I know for a fact, my ignorance was showing here, my presumptuousness, but no. It can't happen. If he's still in there, Harry can't die. Nick, Hayley… I can't do those two like that.

"Look, I've assumed you've tried everything you could think of already to stop this, didn't you?" I said, turning to Irene. "That means you think there's a chance."

But to my utter surprise, Irene slowly shook her head at me. "There's no chance, no remedy. I knew from the start there was no hope for him, something like this - once it starts, it can't be stopped. The only way to rid of the parasite is to rid of both souls completely. He has to die." 

"No, no, wait," I was shaking my head now too, frantic in my movements. "Then… why were you even trying, then? If you knew there was no chance from the beginning, what were all those days for? If it's for nothing, why were you even trying to help him?"