Nguithr'xurhs, they are spiders that can be found on the ceilings of some rooms (mostly found in level 1,level 2,level 3),they will set traps on the ceiling,if you enter a room with traps on the ceiling,and stay in one place,the nguithr'xurh will cut the trap and fall on your head causing a feeling of discomfort,if to many traps fall,then you will totally lose your mind and you will not even know where you are anymore,then the nguithr'xurh will eat you,it has 16 legs (it is entity 16),and it is named "nguithr'xurh" because of the strong effect that it can inflict,(it was actually named by a victim but the M.E.G. didn't changed it)