The Spy in the Stacks: How a KGB Archivist's Secret Notes Exposed 50 Years of Soviet Secrets
In 1992, disillusioned KGB archivist Vasili Mitrokhin defected to the UK with 25,000 pages of notes. Hidden beneath his dacha, they detailed 50 years of Soviet covert operations, becoming one of the greatest intelligence coups of the 20th century.