Then their powers of observation broke down. For the time they were full. So they played Up-Jenkins riotously all the way to London: and when they arrived hardly noticed it. They were quite loath to get out, and finally did so into as thick a pea-soup fog as London could produce at the tail end of the season. At this they began to wake up again, and jog themselves to remember that this really was England , so as not to miss things.

They had just realised that the train had run right inside a sort of enormous house, lit by haloed yellow lights and full of this extraordinary orange-coloured air, when Mrs. Thornton found them.