I underestimated the size of this underground secret area. We are currently resting after exploring the only road that leads to somewhere in this underground hell hole. Just from the map alone that I managed to draw, it was big enough that the passageways of the Rodola Mine last time are not even close to the size of this place. Not only that but after our exploration, we didn't even see any traces of monsters or anything living underneath here but we can still feel the intense staring presence somewhere.
The staring presence doesn't do anything bad and does not even reveal where it was doing its staring job but having this constant feeling of being stared at gives some sense of dread to your body that you don't feel safe even though you are in a safe zone.
It was similar to the feeling of discovering that you have a stalker following you in the dark.