The Doctor vehemently shakes his head, "No, you don't understand!" He taps his temple, "I see timelines. Everything - those that are happening, had happened, and are to come. I see them every day, every minute, every breath and heartbeat, I see it. But the good news, it's not a fixed point."

Because he saw the newspaper and knew they had about a week until this is to happen; enough time for him to do something about it. "I don't know why Professor Song wanted me here, but this is the only thing I can possibly understand she needed me for." And why she was no longer here was something he didn't understand either.

"I can stop this from happening Clara."