Voronezh, November 2035. Returned against his will to Voronezh, stalker Kat becomes a central figure in the battle between humans and a new non-human civilization ready to take over the Earth. The very survival of the remnants of humanity is in the hands of Kata, but the choice also depends on his friends. The search for truth, as always, results in a lot of blood, the existence of the city is under threat. Who will win if the hero has become a villain, and former enemies are more important than friends - this is the mystery of the final part of the Embryo trilogy. The book contains obscene language.