A Game For Assassins - The Redaction Chronicles, #1

It's the height of the Cold War, and a team of assassins is targeting agents of the British Intelligence. In desperation, the agency sends their best agent to hunt down the killers. Jack "Gorilla" Grant isn't your typical secret agent. Uncompromising and rough-edged, he doesn't fit in with the debonair intelligence operatives. Drawn into a deadly game, Jack soon realizes that even the perfect spy can die in a wilderness of mirrors.