Now what was someone from Cheem doing here? An interesting puzzle, and River did so love those sorts of things. So she dropped down from the roof where she had been tinkering with the message she had written up there, and approached from around the far side of the building.

"Greetings," she said with a warm smile that did not quite hide the mischievous glint in her eyes. "I'd point out that you're a long way from home, friend. But then so are the rest of us."