The Machine of Lum the Mad | Mind Flayer Area | Githyanki Area | Saladrex's Lair | The Demilich's Room |
MIND FLAYER ENCAMPMENT
This area is of course crawling with Mind Flayers and their pets, so make sure to have psionic protection up at all times. Chaotic Commands on as many characters as possible is a must.

This room is guarded by an Ulitharid, two Mind Flayers, and four Umber Hulks. The Ulitharid drops an Illithid Rod. With the other rod found at 3, they merge to form a key needed in another area.
Before looting the central pool for the Red Oil, place some of your characters in front of the two "closets" in the room and prepare for a battle with level-draining Mind Flayers. Out come two Vampiric Illithids, and the door slams shut. Kill the two Vampiric Illithids for 14,000 XP apiece, and the door opens again.