The War of Major Pronin. The Copper Button.

Major Pronin is the greatest intelligence officer, counterintelligence agent, and detective of the 20th century. He was simultaneously the Soviet Sherlock Holmes and James Bond. During the Great Patriotic War, under the guise of a German, Major Pronin operated against the Nazis in occupied Riga. These adventures are the subject of the gripping novel by Lev Ovalov, which has everything - unexpected twists, fatal women, the struggle of four intelligence agencies, chases, and unwavering love for the Soviet Motherland. Shoulder to shoulder with Major Pronin stand his disciplined students. After all, he managed to raise a whole constellation of intelligence officers! Highly recommended for all fans of adventure literature.