The hunt for the KGB mole in charge of the CIA

The untold, passion-arousing investigative story of the hunt for a KGB mole buried deep in the highest echelons of the CIA.
As the Cold War waned and ended, the CIA, in cooperation with the FBI, uncovered three prominent KGB spies operating within the Russian operations of American intelligence agencies: Robert Hanssen, Aldrich Ames, and Edward Lee Howard. For a long time, however, there was speculation about another mole who may have caused much greater damage.
Three of the CIA's top female spy hunters, women who had dedicated their lives to counter-intelligence, were tasked with an investigation to determine whether another double agent was operating within the CIA's ranks. The conclusion they reached would shake the American intelligence services to their core and have devastating consequences for all countries with which America shared classified information, including Great Britain.
Their shocking discovery would explain why the West was blind to one of the greatest political changes in modern history—the rise of Putin. The fourth unknown spy was, according to the investigation's findings, not only responsible for “blinding” the United States on Russian territory but, as a consequence, also helped Putin to resurrect the KGB unnoticed and seize power.
This book is a gripping story about the investigation of one of the biggest espionage cases and also deals with one of the most important national security questions of our time.