Between in
Anne McCaffrey's
Dragonriders of Pern series is a dimension through which
dragons,
watch-whers and
fire lizards travel during the process of
teleportation, referred to as "going
between". If the dragon does not have a clear picture of its destination in mind, it is possible for the dragon and its passengers to become permanently lost in this dimension. Deliberately going
between without a destination in mind is how dragons commit suicide, usually occurring when the rider that they are soul-bonded to dies of illness or injury, or if the dragon itself is mortally injured. Many characters, fire lizards, and dragons have been lost
between (i.e. "Moreta's Ride"). In
Todd McCaffrey's
Dragonsblood, several make it out of
between after they are lost.