Giant tree

Danger: Normal
Inhabitants : nagas, fairies, Harpies, kensha beasts, noghdongs, podmaws, arboreal frogs, starkala bugs, shadow fishes, abyssal slugs, canopy pantaurs
Characters : Crisis, Anna, Belletia, Léa

The giant tree deserves its name, for it is truly gigantic. It's a single tree larger than many forests, so large that you could build towns and castles on its thickest branches. Because of its dense foliage and immense size, there is a zone of perpetual night around its base. This has resulted in the evolution of strange and interesting flora that glow, much like what you can find in evernight forest, and some bizarre creatures dwelling in that place. The Giant tree is also famous for being home to two giant nagas: Crisis and Anna. The former is a well known predator, dreaded for her great appetite for humans; the latter, a well known grouch.

The crown of the Giant tree is like a little world of its own, with gentle hills made of leaves, a lake carved in the bark of a branch, and gentle streams flowing from it all the way down when it rains. The place is surprisingly teeming with life, with a large gathering of giant harpies, sitting on branches, sleeping around the lake, diving down the crown to go on hunting, coming back with preys to feed to their youngs, or squabbling with each others. With each of those harpies having their individual feather color pattern, it makes for a bright, colorful, and beautiful spectacle. Under their talons, the interior of the crown of the tree is like a sea of leaves with its own, unique ecosystem and strange animals navigating it.

Felaryan atmosphere

Scientists long wondered how life at such height was even possible, as the air is simply not dense enough to support life properly past a certain point. They think that the magical effect of the soil, and presence of so many plants connected to it, create a localized expansion in the interdimensional film that surrounds all of Felarya, causing the atmosphere to expand. The most common theory for the reason of that expansion is that each molecule of gas emitted by plants contain residue magic which interacts in turn with the film, constantly pushing it away. It is thought that some form of equilibrium has or will be reached to stop a run away effect, with the pressure equalizing as Felarya is a closed system. The direct consequence of that is that the overall atmospheric pressure of Felarya is greater than what is found on most other habitable worlds, and that jungle regions, in particular, would exhbit greater atmospheric pressure than other areas. As a result, the maximum life-supporting height of the atmosphere is greatly increased, and a plant like the Giant Tree produces a massive effect on the atmosphere around it, enabling life to exist at greater heights than would otherwise be possible.

Moreover, it's interesting to note that areas such as deserts have a thinner atmosphere and lower air pressure, as those regions lack the extensive vegitation needed to expand both the volume and the ammount of gas in the atmosphere. As these different pressure fronts meet with each others, vast storm fronts are created. These stormy regions are fixed, as the different air pressure zones are fixed, and thus appear as localised features, notably in the Great rocky fields and Torrential coast.

• credits to Servomoore for ideas to develop the giant tree, and to Anime-Junkie, CauldronBorn24, and Rcs619 for those thoughts about the Felaryan atmosphere.