Prosper
From Tardis Wiki, the free Doctor Who reference
Prosper was a planet that was home to the native Mogera. When humans arrived in the colony ship The Duke of Milan, the Seventh Doctor and Melanie Bush established a peace between the races.
Decades later, however, when the Doctor and Mel returned to Prosper with Ace, a war had started between the two races. (AUDIO: Maker of Demons)
