ACE: He's right, you know.

DOCTOR: Who is?  

ACE: The coffee-stall man. It is a funny old world.

DOCTOR: I know. But it could have been a lot worse.

ACE: Well, it has been, hasn't it? But we sorted that out. Like I say, we done good.

(She grinned at the Doctor. To her great relief, he grinned back. They walked along the misty riverbank together, on towards the lights and the music.)