During the 20th century, intelligence services repeatedly sent expeditions to the North in search of traces of Hyperborea. The expeditions were looking for the Alatyr Stone - a diamond tablet with the inscriptions of 147 letters of Slavic cryptography. According to legend, this crystal is capable of capturing the energy of sunlight, radiation from the Cosmos, concentrating and amplifying people’s thoughts; it could become the basis of a biological civilization of the future. Magi, secret teachers and hermits have been cherishing the ancient written tradition of the “Golden Chain” for centuries. In the revived northern monastery they find an unknown book of the prophet Abel, written in these ancient scripts. The monk who found it mysteriously disappears along with the book. The capital is alarmed by a series of mysterious murders. The crimes are committed by a monster skilled in ancient martial arts. A young detective follows in the footsteps of a criminal, risking his life, and discovers a secret network of black magicians closely associated with spContents: 1. Diamond tablet2. Angels' share3. Star of the Magi4. Beast of the Abyss5. Oracle6. Pagan