"Are we really underground? Because something doesn't add up. This place is amazing and- Good gods!" Only when she looked outside the nearest window did Tista notice that the light didn't come from the sun but from some yellow crystals hanging to the ceiling of the cave.
Lightkeep had been built on both the ground and the ceiling of a huge natural formation below Mogar's surface. Most undead could walk on walls like insects or fly thanks to their bloodline abilities so they had no problem moving from the lower to the upper level of the city.
The ceiling had been painted blue and white to resemble a cloudy sky while the ground was rich in gardens and parks, making it no different from a surface dwelling. People of all races and ages walked along the streets and only a few of them were undead.
