It's a long story.

[Not really, but it's one that he feels a need to consider before telling. She sounds pretty hostile - unsurprisingly - and if he's going to sway her to the Fog's side, he's going to have to find a way to spin this first, crucial encounter with the concept.]

Would you like a cup of tea while we talk? I have a café near here, it might be more comfortable than talking out in the street.