Ever since Bogdana remembered Navia, life hasn’t gotten easier for her—instead, it has turned into an equation of nothing but unknowns. From now on, she belongs to two worlds, two destinies, and you can’t choose between them—though you must. Here are the best friends, Sasha too—and… mortal danger. There is the amazing Paraklei, and Orlik too—and… a terrible curse capable of destroying everyone dear to Bogdana. So how do you solve the ruthless equation, slip around the traps set everywhere, and save your worlds, your love—and still not split yourself in two?