The Plane of Skyllium
The main world of the Skyllim campaign. It consists of an infinite number of descending layers of land that eventually congeal together into a massive swamp called the Dreadmarsh. The topmost layer of Skyllium is a massive city called Coret. The plane is mainly inhabited by third-generation settlers, trapped here after the split.
Each layer in Skyllium is seperated by a magical force called the Divide. A dangerous place to traverse, the divide has taken the life of many, and is therefore feared by many of the inhabitants of the plane. The divide also fuels much of the plane’s magical trade, as specially built ships can travel it undamaged.
Different layers of the plane are ruled by many different organizations that take on the rule of patchwork government. There are the trade coalitions of Duripant and Kree, the Thocratic societies of Sedovec and Dawnsmith, and the general peace-keepers of the Coret League and Orrav Houses to name just a few.