Leonardo da Vinciyo staircase. Bobrakov I.A.

Few people know that in a certain parallel world, each of us has a double. Three friends who visited the French castle Shambor did not know this either. Climbing a double screw staircase created by the great Leonardo da Vinci, they suddenly fall into a different reality where the Russian Empire still exists, where there were no world wars and revolutions. And what are their doubles to be in the world that survived Nazism and Communism, where their state is called the Russian Federation.

How can they return to their worlds? What should they do in the new reality - to adapt or change it in their own way? And is it possible to save the world if he, without suspecting it, rolls to a nuclear disaster?