Eli Lavon began with the basic facts of Kurt Voss's appalling biography.

Born into an upper-class trading family in Koln on October 23, 1906, Voss was sent to the capital for schooling, graduating from the University of Berlin in 1932 with degrees in law and history. In February 1933, within weeks of Hitler's rise to power, he joined the Nazi Party and was assigned to the Sicherheitsdienst, or SD, the security and intelligence service of the SS. For the next several years, he worked at headquarters in Berlin compiling dossiers on enemies of the Party, both real and imagined. Ambitious in all things, Voss courted Frieda Schuler, the daughter of a prominent Gestapo officer, and the two were soon wed at a country estate outside Berlin. Reichsfuhrer-SS Heinrich Himmler was in attendance, as was SD chief Reinhard Heydrich, who serenaded the happy couple on the violin. Eighteen months later, Frieda gave birth to a son. Hitler himself sent a note of congratulations.

Voss soon grew bored with his work at SD headquarters and made it clear to his powerful backers he was interested in a more challenging assignment. His opportunity came in March 1938, when German forces rolled unchallenged into Austria. By August, Voss was in Vienna, assigned to the Zentralstelle fur judische Auswanderung, the Central Office for Jewish Emigration. The bureau was led by a ruthless young SS officer who would change the course of Voss's life.

"Adolf Eichmann," said Gabriel.

Lavon nodded his head slowly. Eichmann...

The Zentralstelle was headquartered in an ornate Viennese palace appropriated from the Rothschild family. Eichmann's orders were to cleanse Austria of its large and influential Jewish population through a mechanized program of rapid coerced flight. On any given day, the splendid old rooms and wide halls were overflowing with Jews clamoring to escape the wave of virulent anti-Semitic violence sweeping the country. Eichmann and his team were more than willing to show them the door, provided they first pay a steep toll.

"It was a giant fleecing operation. Jews entered at one end with money and possessions and came out the other with nothing but their lives. The Nazis would later refer to the process as the 'Vienna model,' and it was regarded as one of Eichmann's finest accomplishments. In truth, Voss deserved much of the credit, if you can call it that. He was never far from Eichmann's side. They used to prowl the corridors of the palace in their black SS uniforms like a pair of young gods. But there was one difference. Eichmann was transparently cruel to his victims, but those who encountered Voss were often struck by his impeccable manners. He always carried himself as though he found the entire process distasteful. In reality, it was just a disguise. Voss was a shrewd businessman. He would search out the well-to-do and pull them into his office for a private chat. Invariably, their money would end up in his pocket. By the time he left Vienna, Kurt Voss was a wealthy man. And he was just getting started."

By the autumn of 1941, with the Continent engulfed in war, Hitler and his senior henchmen decided that the Jews were to be exterminated. Europe was to be scoured from west to east, with Eichmann and his "deportation experts" operating the levers of death. The able-bodied would be used as slave labor. The rest—the young, the old, the sick, the disabled—would immediately be subjected to "special treatment." For the nine and a half million Jews living under direct or indirect German rule, it was a catastrophe, a crime without a name.

"But not for Voss," said Lavon. "For Kurt Voss, it was the business opportunity of a lifetime."

As the lethal summer of 1942 commenced, Voss and the rest of Eichmann's team were headquartered in Berlin at 116 Kurfurstenstrasse, an imposing building which, much to Eichmann's delight, had once housed a Jewish mutual aid society. Known as Department IVB4, these were the men who kept the Continent-wide enterprise of mass murder humming along smoothly.

"Voss had an office just down the hall from Eichmann," Lavon said. "But he was rarely there. Voss had a roving commission. He approved the deportation lists, supervised the roundups, and secured the necessary trains. And, of course, he expanded his thriving side business, robbing his victims blind before dispatching them to their deaths."

But Voss's most lucrative transaction would occur late in the war and in the last country to be ravaged by the fires of the Holocaust: Hungary. When Eichmann arrived in Budapest, he had one goal—finding each and every one of Hungary's 825,000 Jews and sending them to their deaths at Auschwitz. His trusted aide, Kurt Voss, wanted something else.

"The Bauer-Rubin industrial works," said Lavon. "The owners were a consortium of highly assimilated Jews, most of whom had either converted to Catholicism or were married to Catholic women. Within days of his arrival in Budapest, Voss summoned them and explained that their days were numbered. But as usual, he had a proposition. If the Bauer-Rubin industrial works were transferred to his control, Voss would make certain that the owners and their families would be granted safe passage to Portugal. As you might expect, the owners quickly agreed to Voss's demands. The following day, the managing partner, a man named Samuel Rubin, accompanied Voss on a trip to Zurich."

"Why Zurich?"

"Because that's where the vast majority of the firm's assets were held for safekeeping. Voss pulled the company apart piece by piece and moved its holdings to accounts under his control. When his greed was finally satisfied, he allowed Rubin to leave for Portugal and promised that everyone else would follow in short order. It never happened. Rubin was the only one to survive. The rest ended up in Auschwitz along with more than four hundred thousand other Hungarian Jews."

"And Voss?"

He returned to Berlin on Christmas Eve 1944. But with the war all but lost, Voss and the rest of Eichmann's desk murderers were treated as outcasts and pariahs, even by some of their colleagues in the SS. As the city shook beneath the Allied air raids, Eichmann turned his lair into a heavily guarded fortress and began hastily destroying his most damning files. Voss the lawyer knew that concealment of such vast crimes was not possible, not with evidence scattered across a continent and thousands of survivors waiting to come forward to tell their stories. Instead, he used his remaining time to more productive ends—gathering his ill-gotten riches and preparing for his escape.

"Eichmann was woefully unprepared when the end finally came. He had no false papers, no money, and no safe house. But not Voss. Voss had a new name, places to hide, and, of course, a great deal of money. On April 30, 1945, the night Hitler committed suicide in his bunker beneath the Reich Chancellery, Kurt Voss shed his SS uniform and slipped out of his office at 116 Kurfurstenstrasse. By morning, he had vanished."

"And the money?"

"It was gone, too," said Lavon. "Just like the people it once belonged to."