The Master Sniper

It is the spring of 1945, and the Nazis are  eliminating all the witnesses to their horrible crimes,  including Jews and foreigners remaining in the  prison camps. Kommandant Repp, who is known as a  master sniper, decides to hone his sniping abilities  by taking a little target practice at the  remaining laborers in his own prison camp. But one man  escapes and becomes the key to solving the mystery  of the cold, calculating Kommandmant Repp and his  plans for ending the war.
Repp was  the master sniper whose deadly talent had come to  the notice of British Intelligence as the linchpin  of a desperate Nazi plot to reverse the fortunes  of the Third Reich at the eleventh hour. But what  was the nature of the weapon that Repp was to  aim--and who was to be his last target? Allied  Intelligence officers Leets, from the U.S., and  Outhwaite from England are dispatched to identify and  abort his lethal mission. And when they finally  learn the truth, the Second World War's deadliest  race against time is on....
From the Paperback edition.