In the aftermath of the October Revolution Cournos was involved with a London-based anti-Communist organization named The Russian Liberation Committee. On its behalf he wrote in 1919 a propaganda pamphlet named London under the Bolsheviks: A Londoner's Dream on Returning from Petrograd.

In Cournos' lurid but humorous future history, a British revolutionary regime introduces a new currency named "The MacDonald" for Ramsey MacDonald; MacDonald is, however, soon shoved aside by the Bolshevik leaders MacLenin and Trotsman (sic). A counter-revolutionary drive by General Haig is defeated at at St Albans. Lloyd George is imprisoned in the Tower of London, and H.G. Wells is also imprisoned by the Bolsheviks, despite his left-leaning book Love and Mr Lewisham. The London described is plagued by poverty, with black market cigarettes and broken lifts, and the narrator wanders round the Strand, exclaiming at the filth of the streets, the idlers and the jealous envy displayed towards his new boots.