>>32112050Hmm, there's a strip of kinda desertic land near the South-West, maybe it can have a cousin there...
But here is the setup. The Underworld's underground near the mountain is absolutely chock-full of chuubanite, basically every other shard of quartz out there is saturated with it. All this chuubanite emits radiation, which leads to magicotrophic fungus, our world's analog to
https://en.wikipedia.org/wiki/Radiotrophic_fungus. Those fungus are fucking everywhere and form the bottom level of the biome's calorie pyramid.
Then, you have some kind of creature which feeds on those mushrooms. I'm not sure what these are exactly, might be multiple species, maybe fungivore salamanders, but I need more ideas there.
But anyway, the mushroom-feeders form the second layer of the pyramid. They inhabit those caves in the Underworld, caves which are, possibly, mostly the creation of Beeg Snek. I guess there would have been some kind of geological cave system to begin with, but over millions of years, now most of the caves are the creation of the snake.
Now, I think there would be some other predators in the ecosystem who feed on the fungivores, and then Beeg Snek is the apex predators who eats everyone else.
Next, there's the obvious issue of how can a creature burrow through rock. Both a creative mechanism and adjustments in the rock composition are needed. Maybe Beeg Snake, over eons of burrowing, has an impact similar to earthworms in mixing and loosening the soil, but down to a bigger depth? Making the depth of the bedrock floor much deeper? Maybe he has a hardened skull cap and just bashes the rock ahead of him to pieces, digging out tunnels? Maybe it secretes acid which easily melt the stone in front of him? Thematically, I like the head-bashing, but my autism really enjoys the soil loosening theory, I feel like that would happen...
Also, I'll definitely get to the rest of Serina, shit was cash.