'The Odessa File' (1972) by Frederick Forsyth

'The Odessa File' is a gripping thriller set in the early 1960s, blending historical events with fiction.

The novel follows Peter Miller, a young German freelance journalist in Hamburg. After the suicide of an elderly Holocaust survivor, Miller obtains the man's diary, which details horrific experiences in a Nazi concentration camp, particularly atrocities committed by SS officer Eduard Roschmann, known as "The Butcher of Riga." Driven by a mix of personal curiosity, justice, and vengeance, Miller begins an investigation into Roschmann's whereabouts.

As he digs deeper, Miller discovers the existence of ODESSA—a clandestine organization of former SS officers working to protect and reintegrate Nazis into society while maintaining their power and influence. ODESSA is also assisting with weapons development for Egyptian forces, threatening global stability.

Miller's quest for truth becomes increasingly dangerous as he infiltrates ODESSA and is pursued by its ruthless agents. His persistence uncovers Roschmann's identity and leads to a tense climax, revealing long-hidden secrets and personal connections to his mission.

The novel explores themes of justice, morality, and the lingering shadows of Nazi crimes, set against a backdrop of post-World War II Germany. Forsyth's meticulous research and sharp storytelling make The Odessa File a compelling and realistic thriller.