What if your grasses decomposed and were put under pressure by rocks inside said cave, slowly transforming into a rich, dark to jet black liquid hydrocarbon substance or something like that?
That would be pretty strange. Millions of years of stored sunlight and carbon, just liquefied and pumped underground on purpose.
What if your grasses decomposed and were put under pressure by rocks inside said cave, slowly transforming into a rich, dark to jet black liquid hydrocarbon substance or something like that?
That would be pretty strange. Millions of years of stored sunlight and carbon, just liquefied and pumped underground on purpose.