A small subset of humanity falls outside normal variation. This subset includes:
Cambions, an extremely rare breed, arise from relations between humans and demons. Most favor their human half, but intense emotion or magic use brings their demonic heritage to the fore.
Little Folk occasionally result from a union of two ordinary humans, and more commonly when one or both parents are also Little Folk. Despite myths and misconceptions, they are essentially short humans.
Demi-humans resemble humans, but belong to distinct species; humans and demi-humans cannot breed with each other. Demi-humans dwell in isolated regions of Erebus. Known types include: