Invisible seeker

Location Dungeon Levels 9–10
Damage 2–255
Notes Completely invisible
Invisible seekers don't appear on your screen at all, though the game will list them in the "things you see" message. If there's one in front of you, just start attacking. They can be especially dangerous if they attack from the side, since it's not immediately clear where the attack is coming from.
Compare Invisible seeker to other Creatures
Lich Mind whipper

Related

Invisible seeker

Location Dungeon Levels 9–10
Notes Completely invisible
Invisible seekers don't appear on your screen at all. If you think there's one in front of you, just start attacking. If your attack is completely ineffective, try another direction. They can be especially dangerous if they attack from the side, since it's not immediately clear where the attack is coming from.