Molten boundary

Exceptional in their truth novels about the Great Patriotic War. The roar of distant explosions, the smell of gunpowder, the clanking of tracks - the terrifying signs of war come alive again on the pages of books written by the grandchildren of those who reached Berlin in the distant 1945. Summer of 1942. The fascists are advancing towards the Don River. Our units desperately defend hastily fortified positions. The impregnable Voronezh has become a real fortress. Red Army soldier Roman was born and raised in this city. Now he is among its defenders and must stop the enemy... The Germans attack our positions with all their might. At some point, Roman realizes that the climax is imminent. In desperation, he climbs into a damaged Soviet tank, where he finds an unsent letter from a deceased tanker. Everything that happens next can be called a real miracle...