Aquatica
From Tardis Wiki, the free Doctor Who reference
Aquatica was a planet which in 3999 saw a war rage between its three kingdoms: Medusia, Phyllosia, and Matterdom. It was at this point the planet was visited by the Fourth Doctor, Sarah Jane Smith, and Professor Vittorio Levi, who were captured by the Medusians. (PROSE: War on Aquatica)
