Monster Lairs - Flumph and Mind Flayer - Underdark Camps

This one is a two-fer. We've got a monster lair for both flumphs and mind flayers.

Flumphs are peaceful creatures that float around and feed on psychic energy. Exactly the type of psychic energy that mind flayers give off in spades. The feeding is harmless to mind flayers (though their evil thoughts give flumphs slight indigestion) and flumph brain is inedible to mind flayers so they mostly ignore the flumphs as a mild pest at worst.

The flumph camp consists of strange flora and floating platforms powered by psychic energy. Here, the flumphs peacefully exist and feed off mind flayer psychic energy whenever they pass by in the nearby tunnels. This feeding has provided the flumphs with a great deal of information about the mind flayers' operation, should anyone happen to want to say... attack said mind flayers.

Meanwhile the mind flayers use this location as a staging ground from which they capture people and either eat them or convert them into more mind flayers at the behest of their mighty elder brain.