Arthur Koestler: ‘Darkness at Noon’ Revolutionary and political ethics ‘Darkness at Noon’ is the second novel of a trilogy, which revolves around the central theme of revolutionary ethics, and of political ethics in general: the problem whether, or to what extent, a noble ends justifies ignoble means, and the related conflict between morality and expediency. The theme of the novel relates to the ever-present predicament faced by the leaders of any political party or revolutionary movement, from the slave revolt in the first century to the Old Bolsheviks of the nin