The Inner Ring (1944)
lewissociety.org
lewissociety.org
(This is the third book in the "Space Trilogy," but it's the one that has the least to do with "space." Instead, it's chock full of Lewis' philosophies; the central theme of the story is straight out of The Abolition of Man. )
Born as a shoe-in into the establishment, the UK's inner ring if ever there was one, Philby wasn't satisfied with that, he had to be on the inner ring of the Intelligence community, and even that wasn't enough. He wanted to be (the author argues) on the inside, a club of one, by turning traitor and giving secrets to the Soviets. The great paradox about him as the author explained was while he was betraying he erstwhile stood for, he was still a great fan of all these institutions he joined. Even in exile in Moscow he wore his school tie, he followed 'his' cricket club, and he still seemed to think of his colleagues as friends. The bitter irony being for him there of course, he wasn't even trusted there by his Moscow masters, they always suspicious that he was a grand triple-agent in a British masterstroke.