Let's Play Eye of the Beholder 19: Monsters of the Deep Dark
231If you want some music to play on loop during the thri-kreen floor, I suggest this as a good starting point:
https://www.youtube.com/watch?v=MQt_C1gL4YY
If you want some music to play on loop during the next floor down, I suggest this as a good starting point:
https://www.youtube.com/watch?v=-E5pmo98MKY
There are many different monsters in D&D - I have Monster Manuals 1-5 for v3.5 alone - but some are more horrifying and alien then others. At low levels an adventuring party typically concerns themselves with more mundane threats; bandits, goblins, kobolds and monstrous humanoids. Only as they get higher level do the hints of darker, more insidious powers begin to surface.
There are villainous groups and races which scheme with goals far bigger then that of lower level threats. They have powers beyond that of strength and sometimes even magic, able to harness abilities beyond all normal comprehension. They can rend flesh from bone, twist minds to their own control and are the bane of adventuring groups that dare to face them.
...And then there are those threats that can render you helpless as they consume you. They can rewrite your memories, turning you against friends and serving without question. They can subject you to depths of terror and pain that you didn't think possible, all without laying a finger on you. It is those threats that adventurers learn to fear most, the truly alien foes that can win before they've even shown themselves.
It's a good thing we're not facing any of them, right? ...Right? And it'd be terrible if I got the name of one of those horrifying creatures incorrect, wouldn't it?