The proper use of the written world can transform the world by literally bending the laws of physics, creating new species, altering geography, and changing the laws of nature. The art is called
Literomancy and it is bound by all the rules of storytelling and literature.
There are also a considerable number of
Werebeasts, and they tend to formulate
The Great Houses who rule kingdoms and empires. This is a recent "restoration," however, and nation building and shifting borders is often part of the plotline.
There are some remnants of extremely high tech left over from bygone civilizations who have been erased from the fossil record, and new MagiTech is beginning to stretch the limits of the technology we know.
There are also alternate planes of existence. One is known as
The Void, which might be the raw chaos of creation. Some people can even travel through it, and shift beings from other realities into this one. Another is Faerie, sometimes known as "the Feywild" (borrowed, obviously, from Dungeons & Dragons), and while its proximity has influence, and its Mists have effects on the world, including some at least partially-fey characters, for the most part, the Gates remain closed.
If not altered by Literomancy, the natural laws are assumed to be similar to our own.
At one point, the geography of the GoTverse was the same as modern-day Earth's. Now,
things are different. Continents have shifted, coastlines have changes, there are mountains where there were none and no mountains in places we expect them to be. Climate may be different from what is expected.
There are likely other worlds and
other dimensions too, which can be called upon by
Literomancers who believe them to be the fictions they create.
The active setting is global. We have Tome Knights from almost every English-speaking nation in the world, and many European nations who are not English-speaking as well. They are all important to the story.
Significant characters come from North America, the UK, and Australia, so these places tend to be the focus of much of the action.