About the book: year / In the Abwehr file cabinet he was listed as “Gray”. The officers of the German intelligence school noticed a silent, wary and attentive, “left-handed” man, accurately shooting from a revolver with both hands, studying all disciplines with excessive zeal, and especially talking about methods and techniques of murder. He did not stand out from the crowd in any way, remained unnoticed, knew how to hide, wait, and then, like an ambush wolf, attack his prey. ...Like hound dogs we followed his trail, rushing towards danger…