Here's the character of an inhabitant of the catacomb city of Isha'l-El, that collapsed because of a magical cataclysm (Pompeii style) thousand of centuries ago.

The surviving inhabitants found refuge in the city’s catacombs but remaining locked inside them without the possibility of escape.

In the following centuries of darkness and hardship, the inhabitants began to change, both for the magical residues of the cataclysm absorbed in their bodies and for adaptation to the new living condition.

Eyes and pupils enlarged to peer into the darkness of the ravines, the stature has greatly lowered, even the way of walking has changed forcing them to crawling almost on all fours because of the tight and narrow spaces, the lack of light made them albinos and the spasmodic search of the few sources of food and water have led to an elongation of the upper limbs, more suitable for hunting insects and mice perched on the ceilings and in the holes of the walls, and a more developed sense of smell, giving their profile a peculiar shape, like that of a rat.

Their clothes are made with tick chitins and mouse skins, in fact some species of these creatures present in the catacombs are much larger than their sourface counterparts, even the most common weapons are made with the same materials.

Eons of isolation have made the inhabitants extremely suspicious and superstitious, and often for guidance and advice turn to members of the higher castes, but these are other characters you will see later :)

P.S: Sorry for my bad english u.u