From the depths of centuries, there is a dark secret hidden in the Khosrov Forest. Yago has long discovered the chest of King Khosrov Kotak’s heart, which is concealed among the rocks as the source of the forest’s vital force. However, it remains closed to him, as it can only be opened with the blood of a royal heir.

From that moment on, Yago and Marusik are doomed to wait, searching for centuries for the one person through whom they will finally be able to open the chest and gain control over the power and dominion of the forest.