All her life, orphan Polina relied only on herself, but when her only friend is threatened with death, Polina is ready to believe in anything, even in magic, other worlds and all-powerful grandmothers. And now the agreement is concluded, and it no longer matters how the fate of Lina herself will turn out, because in all worlds love has been and remains the main weapon. An independent book. Attention! Some Greek and Roman myths, taken as the basis of the work, are slightly changed to please the author and the plot.