The Prison Realms are artificial miniature realms created by either a god or a group of powerful sorcerers specifically to imprison something unspeakable. Some of the prison realms hold banished gods while others contain some ancient evil. One realm even holds Orongi the Destroyer. Each Prison Realm is different, designed specifically for its inhabitant or inhabitants. These realms are sealed, but can be opened in certain ways, which would allow their prisoners to escape. There are dozens of Prison Realms, each holding one or more entity.