Zolfa-Thura
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Zolfa-Thura was a desert world in the Prion system, devoid seemingly of life. This was because of the war between the Zolfa-Thuran over the Dodecahedron. During the war, nearly all of the Zolfa-Thuran were killed and the planet was turned into a desert. The planet was later destroyed due to the Doctor's meddling with Meglos' plan. (DW: Meglos)