Crothian said:
I don't know, he's listed as one of the three authors but it doesn't say which individual parts were done by whom. I'll see if I can summon him.
I wrote a large part of the mechanical aspects of this book.
All the Prestige Classes are my own creations, whole cloth (from concept to final implementation), ditto for most of the psionics, a bunch of the spells.
Hang on, have to get my copy off the shelf.
I was the primary author or sole author of the following sections:
Chapter 6 - The powered armor, some mechanics in the other flesh-craft material.
Chapter 7 - Magic & Psionics (a majority of the psionic powers, a chunk of the spells an the 'discard spells')
Chapter 8 - Feats
Chapter 9 - Illeth and Class (core & prestige classes)
Chapter 10 - alternate and optional implementations and rules.
As a team, we worked on deciding what the focus and core material of the book as well as how we would differ from the 'official' view of the Flayers. It was a joy working with Steve & Jim.
And of course, JUST after the last of the material made it in for the book, WotC released the final SRD with no mind flayers in it. Thankfully, the great men at Paradigm Concepts didn't want to sink this book either, and managed to wrangle permission to publish it.
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As an aside, I have NEVER read the Illithiad. I avoided all things 2nd edition back in those days and now the books are quite expensive and hard to come by.