Unnatural Mist from Nyssa’s Quarters

A creeping, spectral mist seeps from Nyssa’s quarters, its unnatural tendrils curling through the TARDIS corridors. The grey-white vapor carries the faint scent of ozone, its touch leaving condensation that dissipates too slowly, as if the air itself resists normal dispersal. Tegan stumbles into its path, her breath hitching at its clammy chill, while the Doctor’s quickened pulse betrays the severity of the hidden threat. The mist’s presence unravels the TARDIS’s coherence, its very existence forcing the Doctor to abandon immediate explanation in favor of urgent intervention.