About the book: year / Giordano walked forward to the place of his execution, looking for a familiar face in the crowd of those gathered. The black stone he held in his hand seemed hot, ready to burst into flames. Having met the gaze of his old friend, Giordano quietly dropped the stone, which was immediately picked up by the boy, who ran past like lightning, and then disappeared among hundreds of people. The fire under him flared up and slowly flared up. People were waiting for cries of pain and fear, but he only looked into the emerald eyes of the Egyptian and saw in them not a reflection of the soul, but a whole world created by invisible monads. A smile touched Giordano's face when a friend showed him the black stone that they had been looking for for so long. Decades would pass, and the stone would point the way to the truth that had once disappeared in flames…