This is the biggest work involving Major Pronin. But the main hero is not him—the young Soviet lieutenant is the one caught off guard by the war in Riga. He is drawn into the most complex spy game, while Major Pronin, posing as a Gestapo officer, organizes the entire operation.
The fast-paced adventure novel “The Copper Button” was written by the well-known Soviet writer L. S. Ovalov in 1957 and has since enjoyed unchanged love from readers.