The Otherworld is a dimension or series of dimensions separate from our own and usually supernatural in nature. It is not its own distinct Universe in the Multiverse, but rather a pocket or side dimension partially connected to this Universe. It is most commonly used to refer to the Underworld and/or Faerie, but can encompass any other magical/alternate worlds such as Wonderland, Nonestica, Kintaria and The Story/Fairytale Realm(s), The Isles of Magic or Sky Isles, etc. Other Universes may or may not have there own Otherworld(s) as well.