Rea is the dark fantasy world in which Children of Morta takes place. It is described as a place long forgotten, of love found and love lost. Beautiful, but dangerous. Rea appears to contain floating islands as well as land. Three moons/planets are visible in the skies of Rea.
Areas in Rea include:
- Mount Morta
- The Forest
- The Bergsons' Home
- Caeldippo Caves
- Barahut - a town or city where festivities are held, Linda would have gone except for the Corruption, it is possibly the same place where the Grape Festival is held and Linda played a song, and where John and Mary fell in love
- TerraLava - a town or city where healers and traders can be found
- The Midlands - a forested region where the Bergson's home and Mount Morta are located
- Dread Valley - a valley infested with giant spiders which were later pushed into the Caeldippo Caves by the Corruption
- Eastern Shore -
Also vague references to "the north" (where Mary is originally from) and "faraway lands".
Rea has a similar name to the Goddess Rea Dana.