The Solworld is the world populated by humans. It contains atmosphere, geology and ecosystem very similar to Earth. The oceans and land surfaces are spread on a triangular surface. Above the triangle is deployed a musical sky.
This triangle is part of the Tetracosmos (i.e., the Universe).
Nelphis City is located on a massive island in the middle of the Splintered Sea.
Total Solworld area: 666 666 666 km²
Length of a side: 34 537 km
● The musical sky is linked to the cosmogony and cosmology of the Tetracosmos. Everything was born from music; the celestial archway reflects the creative score of the universe.
● The inhabitants of the Solworld do not see the sky the same way the reader sees it. Musical scores are not written the same in their country, but it is translated, as is every commonplace cultural reference.
● The staves are not physically here. When cameras take pictures of the sky, it shows a strange, uncanny bedlam of intricate, moving, carved prisms instead. It is the "harmony of the Tetracosmology", the real creative score. A complex, neverending structure with a perspective extending in more dimensions than we are used to. This mystical vision cannot be understood by the human eye, and it conveys the prisms into the closest equivalent it can find: music notation.