For centuries, morions have fascinated mystics and connoisseurs of unusual minerals with their dark beauty. However, ordinary miners did not favor them, considering them a devilish gem. But what if the rumor was right? The answer lies in the continuation of the story of bioengineer Bogdan Novoseltsev. This time, the creative scientist finds himself in a secret scientific group assembled to solve the mystery of the “black crystals” discovered on the fronts of the Northern Military District. Together with a charming and unusual crystallographer girl named Snezhana, he will make many discoveries and transfer his experience from myceliums to minerals. The unbeaten path continues. And this time the fate of several nations depends on those walking along it. In this science fiction story you will find fascinating information about crystals, the mysteries of water and ice, the practical application of the achievements of modern psychology and the fascinating inner world of synesthetes. The author warns that almost everything written is true. Well, what is fiction? You will learn about this from the book itself.