The one who will be able to survive

Writer Viktor Nadezhdin goes to an amazing city that has formed around a Zone created by Guests, creatures of the next evolutionary level. The city is separated from the Zone by a Wall. He hopes to see his daughter Dina, who has gone there. The so-called "runners" are constantly trying to break into the city, people who are ready to move to the next evolutionary level, and whom Guests are ready to receive, but ordinary people in every possible way prevent them. Victor's daughter also became a "runner". She left for the city 2 years ago.