Mind Flayer Lair

I came up with this dungeon when my players wandered into hex C2-20 in the classic Dungeons & Dragons adventure Descent Into the Depths of the Earth, a great old adventure which encourages DMs to fill inthe blank encounter areas with dungeons of one’s own design.

One of the players was playing a Warlock with the Far Ones pact, and I wanted to introduce a re-occurring Mind Flayer antagonist who would be a contact for the Warlock for their pact. The result was a nasty little dungeon filled with traps and horrors. When the Mind Flayer within contacted the warlock telepathically to offer magical secrets the Player Characters followed them right in.

mind flayer lair

The evil architects of this stronghold forced their slaves to build it as a spiraling trap, with a raised, hidden central area from which they could use their psychic powers on hapless intruders. As their prey make their way through the outer areas, encountering the mind-controlled slaves who dwell there, the Mind Flayers will lurk, peering through hidden peep-holes to use mind blasts and charm powers on their victims. If discovered, the Mind Flayers will retreat up 20 foot vertical shafts to the central passages and behind further secret doors.


Posted in 1st edition D&D, 5th edition Dungeons & Dragons, Adventure, Fantasy, Location, Lore / Worldbuilding, rules agnostic, Trap and tagged by with no comments yet.

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