Abora is a living being. It is shaped like a planet, and most of its surface is covered by fluvial woodland. It has humongous waterfalls and a great amount of wildlife. It is divided into three areas, each one governed by two very powerful beings, who are really personifications of Abora. These beings are not good or evil, but represent different aspects of the sentient Abora. Every 500 years, Abora sheds its skin, so to call it. The surface slowly detaches itself from the planet as the planet grows, sending immense layers floating upward into the atmosphere. These layers rise with entire civilizations on them.
The floating layers float on the atmosphere of Abora, and on them, life goes on as usual. Big cities thrive and commerce is strong. These layers float very slowly upward, into a place called Hedona. No one knows what Hedona holds. In clear day, inhabitants of one layer can catch glimpses of the other layers, and even of Abora on the ground below. Huge floating animals called Lermaks, similar to turtles, also harbor smaller cities. Smaller versions of these, called Reamers, and small flying dragons, called Lagaires, are used as means of transportation between layers. And of course, the crude-tech world of Abora has given birth to many flying contraptions powered by vapor engines, including flying vessels and artificial limbs. Rumors say that some Techquimists have even developed huge war machines powered by vapor that they plan to use to gain control of the Floating Layers, and hence, avoid the ascent into Hedona.