Kaspar studies Yalu, a mighty ancient tribe that disappeared for unknown reasons by the ninth century. Almost nothing of the Yalu remains—except for the legend of Baba Yaga and the hut on chicken legs. But no one has heard of the Aspid Tree. The Yalu didn’t desecrate the land with the dead. They buried them in trees. The bones of villains were fed to giant aurochs. The Yalu was a wise, strong tribe—but by our time even well-known historians consider them only a beautiful legend. On the eve of his wedding, Kaspar gets a chance to see the real hut of Baba Yaga with his own eyes. Would you refuse such an invitation? He accepts—yet the trip turns into a trap, in which even death would be a desirable outcome.