For Service, the great unanswered question is how to reconcile the two vital narratives that underpin the extraordinary but troubled events of 1917. One puts the blame squarely on Tsar Nicholas II and on Alexander Kerensky’s provisional government that deposed him. The other is the view from the bottom, that of the workers and peasants who wanted democratic socialism, not the Bolshevik dictatorship imposed by Vladimir Ilyich Lenin and his successors.

Service’s vivid and revisionist account spans the period from the outbreak of the First World War to Lenin’s death in 1924. In it, he reveals that key seeds of the revolution were sown by the Tsar’s decision to join the war against Germany in 1914. He shows with brutal clarity how those events played out, eventually leading to the establishment of the totalitarian Soviet regime, which would endure for the next seven decades.

Nicholas II, Kerensky and Lenin are to the fore, but Service enriches his narrative by drawing on little-known diaries of those such as the Vologda peasant Alexander Zamaraev, the NCO Alexei Shtukaturov and the Moscow accounts clerk Nikita Okunev. Through the testimony of these ‘ordinary’ people, Service traces the tortuous path that Russia took through war, revolution and civil war.

Doors are at 6.40 pm. The talk will finish at 8 pm and Robert Service will be signing books afterwards.