Quotation from: The War of the Worlds

Written by: H. G. Wells

"The Martians are able to discharge enormous clouds of a black and
poisonous vapour by means of rockets. They have smothered our
batteries, destroyed Richmond, Kingston, and Wimbledon, and are
advancing slowly towards London, destroying everything on the way. It
is impossible to stop them. There is no safety from the Black Smoke
but in instant flight."