Under the Sun of Satan
Under the Sun of Satan is Georges Bernanos's first published novel, appearing in 1926 in Paris.
According to Michel Estève, the novel draws on three primary inspirations: the life of the curate Jean-Marie Vianney, which informs the character Donissan; the writers Léon Bloy and Jules Barbey d'Aurevilly, from whom Bernanos takes the idea of a world deprived of God and the idea of a union of reality and the supernatural, respectively; and the social climate of France after World War I, which Bernanos vocally decried.
It is listed #45 on Le Monde