Lis
The Doctor was standing in the middle of the park, head cocked to the side and staring at an oak tree that was gradually turning into something else entirely - something glistening and silver.
"Did you know," the Doctor said, without turning to look at whoever had just approached, "I think if we gathered everyone here together, and had them think as hard as they could, all at once, about Gallifrey, we could just about raise a citadel. I can't imagine why we'd want to mind - but I think we could."