Cliffs of Valhalla — Mike Whicker

The year is 1949. Two women, mortal enemies during WW II, both now work for the United States. Erika Lehmann, a former spy for Nazi Germany; and Zhanna Rogova, an assassin for the Soviet Union during the war, are tasked to team up for a mission designated by Secretary of State George Marshall. Brought together with both the famous German commando, Otto Skorzeny, and members of the Irish Republican Army, the two women enter into a harrowing and dangerous game of cat-and-mouse with shadowy forces trying to derail the birth of NATO.