Excession is a science fiction novel by Scottish writer Iain M...
wikipedia - 23 Feb 2021Excession is a science fiction novel by Scottish writer Iain M. Banks. It is the fifth in the Culture series, a series of ten science fiction novels which feature a utopian fictional interstellar society called the Culture. It concerns the response of the Culture and other interstellar societies to an unprecedented alien artifact, the Excession of the title.