When the Green Labyrinth, the heart of the Diving School, is threatened, it inexplicably changes and chooses a guardian for itself. From now on, only this guard is able to find the passage to the main artifact of ShNyr. Guy, the leader of the witchers, found a way to win the final victory over the Shnyrs. All that is needed to carry out his plan is to obtain one of the Green Labyrinth's flowers and a golden bee. Moreover, the owner must give up the bee voluntarily. But the most important thing: it is necessary to capture the keeper, whoever he is. Le Havre finds a unique living bookmark, Rina and Gamov are in big trouble, and Makar gets an extremely dangerous girlfriend, with whom, perhaps, he should not have gotten involved at all.