There is a belief: precious stones are able to influence their owner - they can both help him in difficult times and threaten with mortal danger, especially if the person in whose hands this stone fell is weak and does not have the proper power. So the ruby, cut by the master Antonio Zappi, changed the fate of many people before he got to the Grand Duchy of Lithuania, where he was assigned a special role... A new novel by a recognized master of action-packed literature!