"Just 'Doctor'," the Doctor finally corrected. "Not 'Sir'. And I'm sorry, I don't really know much. I'm more into the... physics. Time and Space and matter and forces." He hesitated. Although it was true that when it came to magic he knew a little, mostly what he had worked out while he was here living in the company of Merlin and those Wizarding types from the Harry Potter books. "I know people who know more," he admitted. "Sorry."
"What's wrong?" he asked. The Doctor was never the type of mess around with fluffy questions. If he wanted to know something, he would just ask outright. It tended to get results. The Time Lord hopped down the steps, sitting at the far end of the ramp from Freya, fixing her with his sharp, curious gaze.