Arthur's World

Arthur's World was a mythic-seeming alternate Earth with both advanced technology and magic.

History
On this Earth, King Arthur was a historical British king and not merely a shadowy figure of myth. It produced several exceptional sorcerers (or users of advanced psychic powers).

Arthur ruled here before his overthrow (and probable killing) by Morgaine and her son, Mordred. Morgaine imprisoned Merlin, a version of the Doctor himself, leaving the knight Ancelyn, loyal to Arthur, and others to survive. Ancelyn knew of TARDISes and recognised the Doctor's seventh incarnation, though not by his face. The Doctor theorised that one of his future incarnations would move to Arthur's world. This incarnation left a note for him. (TV: Battlefield)


 * The Doctor had, however, earlier met another version of Merlin.

Other information

 * Arthur's World was accessible from the Doctor's universe, though possibly only if a certain ritual is performed linking the two worlds. The exit point in the main timeline is located in Carbury near Lake Vortigern, in rural England.
 * When asked by Brigadier Winifred Bambera, Ancelyn confims that cars do not exist on Arthur's World. However, there would appear to be flying machines called ornithopters used as transport, as Mordred recognises the UNIT helicopter as being like one of these, only with whirling blades instead of wings.
 * The Thirteen Worlds and the S'rax existed in this world. (TV: Battlefield)