February 1917. The cautious merchant Kukhterin decides to send his jewelry away from Russia, but... The convoy only reaches Lake Poteryevo and disappears without a trace. Kolchakism overwhelms Siberia, then the merciless flame of the Great Patriotic War blazes over the vast country, decade after decade flies away. But people are still alive who keep the secret of the Kukhterin diamonds... The famous novel, which has long been included in the golden fund of Russian action-packed literature, is being published for the first time in its full version.