High altitude edema was an illness caught by ascending mountains too quickly. Nyssa was worried that the Fifth Doctor would get it while running up and down mountain stairs in Castrovalva. (PROSE: Castrovalva)
High altitude edema was an illness caught by ascending mountains too quickly. Nyssa was worried that the Fifth Doctor would get it while running up and down mountain stairs in Castrovalva. (PROSE: Castrovalva)