A true Cold War espionage thriller set around the ultra-secret Berlin Tunnel - where British officer George Blake must run a high-stakes double cross to maintain his cover.

The ultra-secret "Berlin Tunnel" was dug in the mid-1950s from the American sector in southwest Berlin and ran nearly a quarter-mile into the Soviet sector, allowing the CIA and the British Secret Intelligence Service (SIS) to tap into critical KGB and Soviet military underground telecommunication lines.

George Blake, a trusted officer working in a highly sensitive job with SIS, was privy to every aspect of the plan and provided seemingly invaluable intelligence about Soviet capabilities and intentions. But in 1961, a Polish defector shocked the CIA and SIS by revealing that Blake was a double agent who had disclosed plans for the tunnel to the KGB before it was even built. 

In a work of remarkable investigative reporting, Steve Vogel now reveals that the information picked up by the CIA and SIS was more valuable than even they believed.

Product Information:
• ISBN: 9781473647510
• Author: Steve Vogel 
• Publisher: John Murray
• Format: Paperback
• Pages: 544
• Dimensions: 19.6 x 13 x 3.8 cm