Nautilus

On Nautilus, water is life. The liquid that elsewhere in the multiverse is merely a combination of hydrogen and oxygen here acts as a reservoir for mystical power that sustains the many fantastical beings that call this world home.

The Southern Continent

The entire southern hemisphere of Nautilus is covered with land. At the south pole is the one and only mountain on the continent, from which all rivers spring. These rivers act as conduits for the great storms of the sea, who shower life-giving energy along their shorelines as they travel back and forth from the Great Mountain. But the storms travel only in set corridors: outside of these paths, the continent is a barren desert. 

The Northern Sea

The entire Northern Hemisphere is covered with water. Most beings who dwell here do so beneath the surface in places where the water is shallow enough to be powered by the light of the sun. Not all make their home beneath the waves, however; for the sky is filled with floating islands.

The Mountain

The mountain of the southern pole is the largest mountain on the globe. Indeed, it is the only mountain on the globe. It is surrounded constantly by the combined power of hundreds of storms all resting atop its peak; this alone makes it impossible for any human to scale. Every drop of water in the Continents rivers comes from this eternal storm. The storms gather here because of the southern lights, which energize water more powerfully than any other light on the planet.

The Storms

The storms of Nautilus are no mere collections of clouds: they are alive. While they are powerful and dangerous, without the energy that they rain down upon the surface nothing on the continent would be able to survive. Storms gain intelligence upon their first trip to the Mountain. The storms must remain over water in order to maintain themselves: otherwise, they will subside and become a caelichi.

The Islands

The islands of the North Sea come in a variety of sizes, from the smallest newborns barely a few yards across to the most ancient islands wide enough to block out the horizon. In their youth, they soar the skies; as they grow, however, they sink to ride the waves. Whether they are old or young, however, the islands are dependent on the sea for energy. Their abilities are powered by the aqueous crystals that form their hearts. These crystals also grant them great connective power. It is by connecting to the plants and animals that live upon them that the islands gain sentience. The heart-crystals are formed from captured storms; these storms do not desire this fate. This has led to many wars between the two groups. The islands have the advantage over the storms, (hence why the storms are confined mostly to the continent), but steer clear of the Continent in order to avoid getting ganged up on.