Zakhar temporarily moved to his Uncle's house, his father's older brother, in the village of Kostyonki due to health reasons. The boy will finish the school year here and stay for the summer. But what to do in the village? In the city, he had a music group, clubs, friends, and here… Here is the strange, Lego-like dwelling of his Uncle, a gigantic turtle roaming freely in all the rooms, and also… In Kostyonki, there is a famous labyrinth from the Neolithic era and the shadows it casts from the past
into our time. Zakhar meets a gypsy camp, a White Guard officer, a dangerous robber named Varvara, who for some reason hates his whole family, a primitive woman named Nadya, and a remarkable creature — the mammoth calf Dobrynya, whom he himself, Zakhar, has drawn from the past! Incredible, but Zakhar has a gift that no one in the village is particularly surprised by: he can touch the shadows. No one else is capable of such a thing! And everything would be fine, but the labyrinth is at the edge of Kostyonki, and the museum where his Uncle works wants to be demolished and replaced with a cottage settlement!
Is it possible to resist the investors when you are supported only by the shadows of the labyrinth and your classmates? Will the kids manage to help the mammoth calf return to his time? And why does the robber Varvara want to take revenge on Zakhar and his family so badly, and will she be able to regain her flesh and stop being just a shadow of the labyrinth?