Althrace's dimension
Althrace was located in an alien dimension separate from Earth's dimension and Gallifrey's dimension along the multi-dimensional range of the Event Synthesizer.
After being banished from Althrace, Melanicus left his dimension and appeared in the dreams of Catavolcus, convincing him to perform a ceremony which gave Melanicus access to Earth's dimension.
After being caught in a series of vibratory illusions, the Fifth Doctor, Justin of Wells, and Shayde found themselves in this dimension during the Millennium Wars, managing to live through twenty-eight years of Absolute Time in a minute. After being approached by a crystal craft, Shayde leapt into "the deep space of another dimension" and met the Lords of Althrace, following them to Althrace. From there, the Doctor and Justin found the co-ordinates of the Synthesizer and left to confront Melanicus. (COMIC: The Tides of Time [+]Loading...["The Tides of Time (comic story)"])
