houses and princes
They live in the northern forests in mud hut communities. They are semi nomadic, they tend to move every 3 to 5 years. They don’t farm, they hunt gather and raid for food. There only significant buildings are massive pyramid shaped temples (they range from 15m to 70m tall) where they make sacrifices(other natives, or captured humans.) They also build 5m to 10m wide circular staircases into the earth that seem to go down indefinitely, no one has ever successfully explored one, these are normally referred to as wells.
No one knows much beyond this.
They look like humans kinda, but tend to be a bit bigger(and stronger) with gray skin and large claws.