The 199 tracks the river west until Greenwich, whereupon it peels off south to Catford. George likes the look of Greenwich. He imagines it the sort of place Adam might be living had he succumbed to family life.
George spends much of the tube journey trying to work out why the train is moving left while the stations on the Northern Line map above the seat opposite seem to be moving right. And isn’t he supposed to be going south anyway?