Attack of the rust cloud

The attack of the rust cloud was endured by the Daleks of Skaro in the year 2065.

The Plague
Radio station N92 intercepted an urgent call from the Black Dalek to the Emperor about a radioactive dust cloud threatening their homeworld. News of this spread to the rest of the universe on 11 September. According to TV 21's science correspondent, if the cloud had been exposed to Beta-Gamma rays, it could destroy a Dalek in "next to no time". (PROSE: Ice Planet Mystery) This prediction was validated by reports on 25 September about the Daleks' losing battle against a rust plague which could destroy a Dalek in under half a minute. Although the Black Dalek released no information on the number of casualties, station S.N.A. 5 estimated that up to half of the home army had been destroyed. They also had images of Daleks in Dalek Tracking station PZ8 just prior to succumbing to the plague. The report plainly concluded that unless effective action was taken, all the Daleks on Skaro would be destroyed. (PROSE: Daleks Suffer Heavy Losses!) Upon the Emperor's return, he realised the Black Dalek was the carrier and ordered that his casing be reconstructed in the recasting furnace. (COMIC: Plague of Death)