A new plot

I´ve heard it say that there are basically two plots for a novel: An individual goes out into the world, and a Stranger comes to town.

Thinking of how it would feel to live in a town along the camino, I wonder if maybe there´s a third plot: Dozens and hundreds and thousands and millions of strangers come and then pass through town, day after day, year after year, century after century.

The point of view would be that of someone on the banks of a slow but inexorable river.