"The Ant Nest Labyrinth," the fifth book in the “Divers’ School” series (“Divers’ School”).
When something threatens the Green Labyrinth—the heart of the Divers’ School—it changes in an incomprehensible way and chooses itself a guardian. From now on, only this guard will be able to find the passage to the main artifact of the Divers’ School. Guy, the leader of the witches, has found a way to achieve final victory over the shnyars. All he needs to carry out his plan is to get one of the colors of the Green Labyrinth and a golden bee. Moreover, the owner must hand over the bee voluntarily. But most importantly: it’s necessary to capture the guardian, whoever it may be.
Gavr finds a unique living bookmark; Rina and Gamov have big troubles; and at the same time Makар gets an extremely dangerous girlfriend—one with whom perhaps he really shouldn’t have gotten involved at all.