Prester is the world in which Last Exile takes place in. It is two different spheres (each representing Disith and Anatoray) that are connected by the Grand Stream. The two spheres seem to be protected by some kind of cocoon.
If you were to travel upwards from Disith and land in Anatoray you would land upside down as shown by the Disith migration ships. Also, when the grand stream is cleared you can see Anatoray in the sky in Disith and Disith in the sky in Anatoray. |