Neural Nodes are a biological map asset that may be happened across if your player find themselves traversing around the inside of some supremely large organism. But why would THAT ever happen!?!? HAHA
Dinosaurs and extremely large animals have neural clusters like these that help regulate the organism (you can look it up) and they make for great McGuffins.
The provided selection may be found inside a Tarasque, The heart of a swamp, the middle of a corrupt forest, the source of all nightmares or just a horrible, spreading, vampiric organism. Enjoy!
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