Heh. Mindflayers or tentacle faces or mindf***ers as they are known among RP players. They are one of the most hated and feared monsters of D&D world. Then again I am GM and I love these masterminds. I would surely support mod like this, BUT the one who does it has to remember, they should not be seen as random spawns or basic guards who are fooled by the oldest of tricks. I would suggest that these great creatures would not be implemented to the game before there is advanced AI mod like the one suggested for sneaking. This would give them the fair fighting change that they deserve, or it could be scripted as player enters the throne room and doors closes behind him. Voices echo or is it only in my mind. Odd language that some who makes sense in its echo. Boss enters in multiple locations, but which of them is the right one and which is simply an illusion played by the mind tricks of the Illithind? =) Modeling would be the greatest challenge and to make them good, I suggest it would be too big of a task. Unless they can be imported or something (as you can see, I am not a modder). Anyway nice idea.