This lively account of Soviet foreign intelligence activity in Great Britain during the Cold War is based on documents newly released from the KGB archives, their "crown jewels," as the KGB unofficially called its most valuable assets. Written by Nigel West, called by the Sunday Times "the unofficial historian of the secret services" and Oleg Tsarev, a former KGB lieutenant colonel, The Crown Jewels provides much new information on the activities of all the well-known British pro-Soviet spies, including Kim Philby, Guy Burgess, Donald Maclean, and Anthony Blunt, as well...