[DF] Non-Euclidean Architecture in dungeons questions.

[b-dog]

So in my dungeons there are Elder Things that live long with the rest of the dungeon tropes. They use Non-Euclidean architecture to hide their doors and living spaces so that they will not be noticed in the dungeon although areas where they have Non-Euclidean gates are often shunned by other monsters due to some innate danger sense. Deep Ones might have a Non-Euclidean door at the bottom of a pool in a cavern which most other dungeon denizens avoid. Other Elder Things may have Non-Euclidean doors in the walls of dungeons which are unknown to other monsters as they likely can not comprehend them or even if they could be able to navigate through them.

So here is the problem I am having, how to use GURPS skills to detect them and to be able to go through them? Spells like See Secrets might have some chance to detect them as they are designed to be secret doors to 3-space creatures. But on the other hand the Non-Euclidean doors are alien to the 3-space reality of the spell caster and thus it would be not seem right to have the See Secrets spell easily detect them IMO. But there should be a chance to know that something is not right about a certain wall or cavern I would think.

I don't think Detect Gate should work because Non-Euclidean doors are not gateways to other planes of existence like Astral Plane, Hell, Spirit etc. They are instead part of mundane reality albeit extra-dimensional. They also are not magical in any way IMO as they are part of reality that man was not meant to know. I think there should be some spells that can be learned to detect Non-Euclidean doors but these are secret spells that are found in forbidden texts. I am not sure how to make these Non-Euclidean doors be somewhat detectable (maybe just that there is a feeling that something is not right about a certain area) but that they are beyond the knowledge of normal spells like See Secrets. So if anyone has any ideas as to how to help me with this then please post.

There are also Non-Euclidean rooms and hallways that are difficult for 3-space beings to walk through and navigate. What kind of penalties would you assign to 3-space PCs who try to do so? There may be some secret spells that can help PCs to be able to navigate in extra-dimensional areas and PCs might be able to learn to navigate in them by reading texts as well although doing so might make them insane.

So what I would like is to have ideas to help to make my dungeon fair yet keep the Non-Euclidean architecture alien to 3-space delvers. Thanks.