The underlying theme of these stories is human loneliness and feeling foreign and isolated in one's own society.Camus writes about outsiders living in Algeria who straddle the divide between the Muslim world and France.
These works of fiction cover the whole variety of existentialism, or absurdism, as Camus himself insisted his philosophical ideas be called. The clearest manifestation of the ideals of Camus can be found in the story "La Pierre qui pousse." This story features D'Arrast, who can be seen as a positive hero as opposed to Meursault in The Stranger. He actively shapes his life and sacrifices himself in order to help a friend, instead of remaining passive. The moral quality of his actions is intensified by the fact that D'Arrast has deep insight into the absurdity of the world but acts morally nevertheless (not unlike the main character in The Plague).