This one'll be sporadically updated as and when I feel like it.

Sir Ian Chesterton, Knight of Jaffa. Born 1930s, London. Knigthed by King Richard in Palestine, 1190

Barbara Wright, Born 1930s, London.

The two disappeared from Shoreditch, London on 23rd Novermber 1963 along with Susan Foreman, a pupil of there's at the local Coal Hill School, month before the Shoreditch Incident. They reappeared on the 26th June, 1965, and always claimed to have no memory of where they had been. Susan Foreman was never seen again. They married not long after.

Shoreditch, London, Earth, Sol, Mutter's Spiral. 27th December, 2009.

It was two days after Christmas, but no one really remembered it. Everyone had lost a day. A planet had appeared in the sky when peoples memories came back. And then it had vanished. A reporter had claimed it was to do with the Wi-Fi, and everyone seemed to believe her. Ian didn't.

"Well it's very nice of you to buy us this meal, Mr. Smith, but I still don't understand why."

Ian was addressing his question to the young man sitting across the table from he and his wife. The man was wearing a brown suit.

"Well it's just...returning an old favour."

"Did we teach you? I'm sorry if we did, we do try to remember faces." Barbara was looking at him somewhat puzzled.

"Yeah something like that. You, both of you actually, taught me something important. A very long time ago."

The meal was finished, Mr. Smith paid, and they took a walk.

"How did you find us anyway? We live in Cambridge now. Just come here about once a year."

"Just luck really. Was in the area you might say. Anyway, it was very nice to see you two again. I must leave." He turned at the entrance to Totter's Lane

"Could you tell us what it is we taught you?"

"Let's just say you taught it to me a long time ago..." How long ago? Ian thought. The 60s? The 70s? "...a really long time."

It couldn't be?

The man strode away, in the direction of 76 Totter's Lane. I. M. Foreman Scrapyards. A Dalek had apparently appeared there after they left.

Could he have meant, when he said a long time ago, 100,000 BC?

"Barbara, you don't think that was?"

"It can't be. He's so young, even if it is, how does he know us?"

How indeed. Even so they walked along the road. Just as they reached the scrapyard they heard a familiar sound. A sound they hadn't heard since 1965. Or rather, since the 29th century.

They ran as fast as they could into the yard and caught sight, just for a moment, of the shape of the Police Public Call Box. And then it was gone.

They looked at eachother. Nothing needed to be said. They both knew. They weren't sure how, but it was clear who the man was. The Doctor.