The cargo spacecraft “Atlant,” as a result of a catastrophe, ends up—at least as it seems to its crew—in the distant future on Earth of the thirteenth millennium. At first glance, this world is lifeless. But then mysterious events begin to happen. It turns out it isn’t exactly Earth, and the people inhabiting this world aren’t exactly human, and they obey completely different laws. And the navigator of the “Atlant,” Sergey Kuznetsov, turns out to know these creatures very well. They’ve already met him, and more than once. What’s more, it turns out he has a wife here—who, in general, is also not quite human. And yet…