Fenner burned Rosenfeld’s message, reminding himself wryly that he was behaving in the very best tradition. This was a game not too difficult to learn, he thought. A game? A game in deadly earnest. A vacation in Venice that was grim business. A girl constantly beside him who wasn’t his. How the hell had he walked into this upside-down world? Where, he wondered suddenly, would Venice lead? 

While carrying out research in Paris, American historian John Craig is surprised when he runs into his old college professor. Sussman is a worried man. A survivor of Auschwitz, he in shock, having seen and been seen by one of the Nazis who tortured him in the camp. But SS Colonel Berg has been dead for 10 years—or has he? Before Craig can help solve the riddle, Sussman is found dead, and Craig is being questioned by the police. As various international organizations are drawn into the hunt for Sussman’s killer, he realizes the ex-Nazi is far more than just a wanted war criminal.

New York art expert Colin Grant is sent to Vienna and bid on a priceless Old Master on behalf of a Texan millionaire. No sooner has Grant landed in Austria than his seemingly simple assignment turns into a nightmare, as he finds himself at the center of a conspiracy to unleash a wave of international terrorism.

In 1945, with their thousand-year empire falling around them and the Allies on their heels, the Nazis hide a sealed chest in the dark, forbidding waters of the Finstersee—a lake surrounded by the brooding peaks of the Austrian Alps. There it lies for 21 years, almost forgotten, until a British agent decides to raise it from the depths. The secrets he uncovers are far-reaching and lethal, and in Salzburg, Bill Mathison, a New York attorney on the trail of a missing colleague, finds himself drawn into the shadowy underworld of international espionage.

Chuck Kelso is an idealist. When he steals a top-secret NATO memorandum, he only intends to leak it to the press; but it is soon in the hands of a Russian agent, a man who has spent nine years quietly working himself into the fabric of Washington society. Within hours it has reached the KGB, and the CIA’s top man in Moscow has had his cover blown. For British agent Tony Lawton, hunting down the Russian operative—the "agent in place"—is a welcome challenge. But for Chuck’s brother, the journalist Tom Kelso, and his beautiful wife, Thea, the affair has unleashed a very special terror.