Christopher's Ghosts: Paul Christopher Series, Book 7

It's a case of tiger chasing tiger as Christopher is pursued by the only man alive who can match his tradecraft or his instincts. Years previously, Christopher witnessed an unspeakable atrocity committed by an S.S. officer. Now, at the height of the Cold War, that officer has emerged to destroy the last living witness of his savage crime. As he edges toward the final confrontation with this mortal enemy, Christopher is forced to operate in the one theater he had thought he had secured—his own past.

With Christopher's Ghosts, a novel whose cinematic scope and penetrating depth transcend the bounds of even the greatest works in its genre, Charles McCarry has surpassed his own matchless reputation as an espionage novelist.