Vladimir Obruchev wrote his famous novel at the age of 61. Vladimir Vysotsky, Marina Vlady, Oleg Dal, Vladislav Dvorzhetsky fought for the right to shoot in its film adaptation, and only in the first year after release, more than 41 million people watched the film. The most amazing thing is that the author of the book was first of all not a fiction writer, but a world-famous geologist!