This is a great example for the RPG Call of Cthulhu. It is an ancient text, written in an unknown language. It appears to have some relationship with our world

This is a great example for the RPG Call of Cthulhu. It is an ancient text, written in an unknown language. It appears to have some relationship with our world, because there are plants from earth, but there are also... different plants. Or are they different? It's hard to tell - you might be fooled by the style of illustration, but there might be something wrong about some of these plants in a very strange way. And you can kinda guess the meaning of some of the words based on their relationship with the images, something must be connected to the sunflower, something must be connected to that nightshade. But who knows fully? And thus, it takes months and months to dig through some of the old text, the texts the cultists read so freely. Months of relating to other, equally or more obscure texts, months of lying in bed without sleep until an idea pops into your head. That's why reading old occult texts is hard. Yes, I love lovecrafts work and that RPG.