Xethra was a planet the Fourth Doctor considered "a lot like Earth" but "wasted." Romana I stated the Time Lord Academy knew very little about Xethra. (PROSE: X-Rani and the Ugly Mutants)
Xethra was a planet the Fourth Doctor considered "a lot like Earth" but "wasted." Romana I stated the Time Lord Academy knew very little about Xethra. (PROSE: X-Rani and the Ugly Mutants)