The seed-embryo of a thinking labyrinth, once brought by Rostik Grinev to Rossa, begins to give its first “shoots”. From giant eggs emerge amazing creatures capable of acting as one with a person and at the same time endowing their “riders” with superpowers. At first, it seems that this “gift” will turn the tide of the war with the spiders and give humanity hope for survival. But a negligible number of people are suitable for symbiosis with giants, and no one except Grinev can find and prepare them. How to be? Rost alone cannot create an entire army, and there is no one to replace him among the people...