The Horizon, like the Gauntlet, separates two levels of reality. Where the Gauntlet separates the material world from the Near Umbra, the Horizon separates the Near Umbra from the areas beyond.
The First Horizon can be said to map physically to the edge of the atmosphere.
Horizon Realms:
- Accidental College of Mercury
- Autochthonia
- Balador Pleasuredome
- Concordia
- Darkside Moonbase
- Doissetep
- Forbidden Lands
- Gernsback Continuum
- MECHA
- Midrealm
- Moreauvia
- Seasonal Realms
- Victoria Station
- Yenosia (also called Null-B)