This story revolves around John Coxeter, a London civil servant, and Mrs. Nan Archdale, a widow. Excerpt: Coxeter did not believe in luck; the word which means so much to many men had no place in his vocabulary or even in his imagination. But still, the sudden appearance of Mrs. Archdale in the great Paris station had been an agreeable surprise, one of those incidents which, just because of their unexpectedness, make a man feel, not only pleased with himself but at peace with the world.