"The Last Word" is a science fiction short story by American writer Damon Knight.
It first appeared in the February 1957 issue of Satellite Science Fiction and has been reprinted twice, in Far Out (1961) and The Best of Damon Knight (1976).
[1] The story is told in first person, by a narrator who, it soon becomes clear, is Satan.
He briefly recounts his history on Earth and tells how he directed people toward destructive activity, for instance by teaching them how to make gunpowder.
Satan comes across a man and a woman, the last survivors, who are inside a transparent dome that keeps out the contaminated air.