this feels like a story that may be somehow related to aelfinn and eelfinn in the nodes that high fantasy authors make course

[Archdragon]

From the first Circle of Zerthimon:

When the First People came to know themselves, they were chaos no longer, and became flesh. Yet the flesh was new to the People and with it, the People came not to know themselves. [...] With their thoughts and knowing of matter, the People shaped the First World and dwelled there with their knowing to sustain them. [...] In becoming flesh, the First People became enslaved to those who knew flesh only as tools for their will. Know these beasts were the illithids. The illithids were a race that had come not to know themselves. They had learned how to make other races not know themselves.

Ok, but howcome the illithids were present in the First World? It's clearly stated that the People creatd the First World themselves, so howcome the illithids were in it? Did they enter later, and if so, howcome?

From the second Circle of Zerthimon:

[...] as Zerthimon tilled the Fields with his hands, he came across a husk whose brain remained within it. It had not been used as food. Yet it was dead. [...] The thought that one of the husks had died a death without serving as food for the illithids was a thought Zerthimon had difficulty understanding. From that thought, came a desire to know what had happened to the husk. [...] Embedded in the skull of the husk was a steel blade. It had pierced the bone. Zerthimon realized that was what had killed the husk. The steel had marked the flesh, but the flesh had not marked the steel.

and

the illithids never carried tools of steel. They only used flesh as tools

So then where did the steel object (presumably a weapon such as a sword) come from? In other words, who killed the illithid?

[Archdragon]

the game draws close Some of RJ’s Note on the Finns

 

he first note is intriguing:

FOR USE WITH AELFINN OR EELFINN: PIXIES/FAIRIES STEAL THE NOURISHMENT FROM HUMAN FOOD. IT STILL LOOKS RIGHT BUT YOU COULD SUPPOSEDLY STARVE TO DEATH WHILE EATING YOUR FILL.

im sure im on the right path now.