"Oh, no," he said, quickly, shaking his head. "I'd never, never do that to anyone. No, he's... He's all human. Ever noticed the amulet that he wears all the time? That's how we brought him back. Charged it with my life force and gave one of my lives to him. I've got plenty to spare, so..."

Jack sighed, but he needed to tell Scotty this, because Ianto knew and it wouldn't be fair to keep it from him, especially not now. "...I was thirty-eight when I got to be like this. I tried to find the Doctor to tell me what had happened, but," he held up his arm and motioned to the wriststrap, "my vortex manipulator was fried, and so I was stuck in 1869, and forced to live here on Earth..." He paused, taking a breath. "In 2008, something happened... Someone took me back to the year 27, and buried me alive... In 1901, they found me and dug me up to put me in cryofreeze until I could wake up right after I'd gone in 2008. And now... Here we are."

As he'd been talking, he'd lowered his eyes, because there really was no delicate way to break the news to Scotty. "So you see, I didn't answer because... I'm not really sure. It's hard to calculate something like that..."