Darkness at Noon dramatises the Moscow show trials and the elimination of the Bolshevik old guard by "No.1" In the Fatherland of Revolution. Told primarily from the point of view of N.S. Rubashov a fictitious merging of real Bolsheviks known to Koestler
Written in 1940 and an influence on Orwell's own writings, particularly Animal Farm and Nineteen Eighty Four Darkness at Noon is an account of one of the many show trials that were a common feature of Stalin's USSR.
It also describes in detail life brief as it was in political prison its daily routines and the methods used to extract confessions.