High Jinx — William F. Buckley Jr.

The year is 1954, and Joseph Stalin is dead. As the ruthless Laurenti Beria, head of the KGB, plots to succeed him, another drama is taking place in a distant part of the Soviet empire. United States and British commandoes have begun a mission to overthrow the Soviet-controlled government of Albania, but it is doomed to failure from the outset--jinxed by a traitor.
In the aftermath of the disaster, CIA super spy Blackford Oakes pursues his adversary from a covert camp for training murderers to Buckingham Palace, from a KGB hideout in Stockholm to the very doors of the Kremlin. The result is a satisfying tale that brings this episode in the conflict between the West and the Soviet Bloc to a summary conclusion.