This place really was quite interesting. The Doctor wandered through it with the intention of locating somebody she knew, though she was still debating with herself how much she actually wanted to anybody to see her like this - still, the fact of the matter was she wanted somebody else to bounce ideas off of, to work out all the mysteries surrounding her current existence. Given the nature of this place, that person would be her...well, him.
The internal debate made her dawdle, and she found herself alongside an aquarium. Crouching down slightly to peer into it, she saw something interesting through the waters. Not a fish, but a face. A very familiar little face. "Oh my."