The Green: a demiplane the size of a gas giant that consists of a single great tree that has grown in all directions, filling it with a latticework of wood and leaves. Gravity's direction is towards the center, where the tree roots in an earth-sized ball of sand, muck and stone covered by a mile-deep brackish sea. The climate is like that of a rain forest, so the atmosphere is humid, there is always a mist, drizzle, rain or even just beads of condensation.
Just like in a typical rainforest, though, there are other plants, most of which get their water directly from the atmosphere. Some, though, get their water from their prey. There is at least one race of sentient plants.
Intelligent animal inhabitants are varied, but mammals, avians, arthropods and arboreal amphibians predominate. Standard PC races like elves, gnomes, goblins and the like have evolved for an arboreal life, having either evolved or using magic to develop gliding membranes, wings, or gripping feet.
Most civilizations are about stone age in tech level, with fire-hardened wood or bark harvested from the One Tree substituting for stone.
The ecosystem has been fairly stable for tens of thousands of years...but now, there comes the Blight. Nobody knows its origins, but it is some kind of magic-resistant fungus that affects both flora and fauna. Many suspect it is not native to The Green. Some suspect it is not even natural.
Just like in a typical rainforest, though, there are other plants, most of which get their water directly from the atmosphere. Some, though, get their water from their prey. There is at least one race of sentient plants.
Intelligent animal inhabitants are varied, but mammals, avians, arthropods and arboreal amphibians predominate. Standard PC races like elves, gnomes, goblins and the like have evolved for an arboreal life, having either evolved or using magic to develop gliding membranes, wings, or gripping feet.
Most civilizations are about stone age in tech level, with fire-hardened wood or bark harvested from the One Tree substituting for stone.
The ecosystem has been fairly stable for tens of thousands of years...but now, there comes the Blight. Nobody knows its origins, but it is some kind of magic-resistant fungus that affects both flora and fauna. Many suspect it is not native to The Green. Some suspect it is not even natural.