Book excerpt: Before espionage entered the era of modern technology, there was the age of George Alexander Hill: a time of swashbuckling secret agents, swordsticks and secret assignations with deadly female spies. The daring escapades of some of the first members of Britain's secret service are revealed in this account of perilous adventure and audacious missions in Imperial and revolutionary Russia. First published in 1932, Hill's rip-roaring narrative recounts tales of his fellow operatives Arthur Ransome - author of Swallows and Amazons and one of the most effective British spies in Russia - and Sidney Reilly - so-called 'Ace of Spies' and architect of a thwarted plot to assassinate the Bolshevik leadership. Unavailable for decades, this lost classic offers fascinating portraits of a world unfathomable to those growing up against a backdrop of WikiLeaks and cyber espionage, and of true-life characters whose exploits were so extraordinary that they have entered the realm of legend.