"You’ll want to listen to this, Bella, because I’d like you to leave this mortal plain knowing exactly how you helped us on the way out," Harry taunted. "You see, many years ago, Unspeakables at the Ministry discovered a way to open a portal to ... somewhere. They didn’t know where, as no-one who went through ever came back. Did they die? Did they go to an alternate universe? They had no idea.