Safety rules aren’t written just for fun. In my forty years of work experience, I learned that well. But one young fool forgot a simple rule: you mustn’t turn on a switch that you didn’t turn off. And instead of a normal workday, I got an electric shock—after which I ended up not in a hospital, but in a compartment of a Soviet train fifty-two years ago. And it looks like it’s carrying me to some backwater, and for a purpose I can’t refuse.