The Berlin Memorandum

[6] Anthony Boucher, writing for The New York Times Book Review, subsequently said that The Quiller Memorandum had attracted a "large body of readers" and that it was "one of the small handful of truly distinguished spy novels of the 1960s.

[8] In fact, Trevor later said he had been inspired by reading a review of (but not, fearing he might take too close an influence, the actual text of) The Spy Who Came in from the Cold.

[11] Quiller is introduced as a serving British intelligence officer in a black organization called "the Bureau" and as a veteran of clandestine service during World War II.

It is, however, mentioned the original explicit purpose of the Bureau was to prevent any possible resurgence of German militarism, any situation that might lead to something resembling a Fourth Reich.

Most of the book takes place in 1965, by which time Quiller has been seconded by the Bureau to secretly provide large amounts of useful intelligence information to West Germany's main war crimes investigation agency, the Z Commission.