All the Frequent Troubles of Our Days: The True Story of the American Woman at the Heart of the German Resistance to Hitler

by Rebecca Donner

Boris returns to Moscow and checks into room 925 at the Moskva Hotel, which faces the Kremlin. He is arrested, tortured, and deposited in a prison cell. On August 28, 1938, he is sentenced to death by a Soviet military court, dragged to a secret NKVD mass-execution site, and shot.