The Doctor turned back to Jack and shook his head. "I'm sorry. It filters out interference, it doesn't reconstruct timelines. I don't---"

He took in a breath and shook his head. Time was complicated, but if they were running from this thing and had to destroy it in anti time, there was very little they could do to go back and reconstruct what had happened.

"Once the Marquis is trapped in anti-time, the altercations he made to the timeline will be permanent," he said. "I won't ever get them back."