I have just realised that Pratchett moved from macrocosm to microcosm in his literary career.
Strata and The Dark Side of the Sun, published before the first Discworld novels, are still largely scifi novels that deal with journeys across space onto strange worlds (one of which, of course, acts as a blueprint for the Discworld).
In the first two Discworld novels, we are presented with a whole world – literally the travels of a tourist and his guide through the sights of the newly invented Discworld.
The sixth Discworld novel, Wyrd Sisters, introduces us to Lancre, one of the “countries” of the Discworld, if you will. The conflict is not spread out over the whole (Disc)world anymore but concerns the rightful heir to a throne.
And the eighth Discworld novel, Guards! Guards!, takes place within the walls of Ankh-Morpork, the biggest city of the Discworld. Again, the conflict has become smaller world-wise but it is still epic enough to feature a dragon.
Progressively, the plots of the following Discworld novels focus on a more personal level, dealing with individual problems rather than world-threatening ones – with exceptions, of course. But looking at the latest novels such as Snuff or Raising Steam, there is none of the world-spanning, epic-with-a-capital-E story lines anymore which were still prevalent in the first Discworld novels.
Now I only have to reformulate these few paragraphs, inflate them to 30 – 50 pages and think of a nice title for this part of my analysis…