The final, decisive fight of a “portal” soldier thrown from the 21st century into 1941—and who went through all the circles of frontline hell. He grew out of the “black greatcoat,” fought in the “black infantry,” and became for the enemy the “black death.” He learned how hard it is to change the course of history—like swimming against the current, or carving a path through snow up to your chest, black with gunpowder haze and frozen blood. He tasted that bitter-salty black snow, he heaved onto his shoulders the unbearable millstones of time—and answered for the fate of descendants whose future is put at risk. Because “if you shoot at the past with a pistol, the future will shoot at you from a cannon…”