In fact, Melekhov discovered a way to travel in Time. There was only one problem: no one knew the Time Travel Code. For example, you cannot directly get from two thousand five years ago to the same year. First you need to get to one thousand nine hundred and forty-three, then to seventeen, and only then will you be able to return back. Vasily himself did not really know how to return, but under the pressure of circumstances he learned to do it intuitively. Not that I really learned, but more or less. He simply CREATED a situation that he thought SHOULD FOLLOW. And sometimes he managed to return.