Another book in the series about unusual and mysterious events in a town already known to the reader. Investigator Nikolaev again cannot afford to think about vacation. The new extraordinary case haunts not only him, but has excited all the overt and hidden secret communities, the new elite of businessmen, criminal structures, underground business tycoons and local mafiosi, official authorities, entrepreneurs, brothers, respectable German businessmen and ordinary residents. Real military actions unfold in consciousness and in reality. Fantastic mythological creatures can also have relatives who are similar not in external physical characteristics, but in internal otherworldly qualities, unique and unrepeatable. The monstrous Harpy Bird is the sister of that magnificent Gorgon Medusa, whom the reader met in the first book, and whose head - the source of a new deadly weapon - someone is trying to find again. The Creature, terrible in its sophisticated mind, at all times creates its own empires with great order and perfect structure, but is always forced to be reborn in a new, incomprehensible time, with other achievements of civilization and adapt again and again, penetrate the minds and souls of people, transform suitable chosen ones into priests and ministers, turning them into outstanding businessmen or keepers of the egg, always remaining an eminence grise and showing a completely different face than people would usually like to see in their place. “This is something not from our world, let’s say, from a completely different dimension. This is a very strong, intelligent creature. Bird - Warrior with inhuman intelligence. It appeared here to populate this world with its offspring, or to simply give birth to it. In the Middle Ages, the church fought them, and in more ancient times, other gods and different heroes.” So many strange and incomprehensible things happen around and within the plot: as if an old woman-fortune teller, blind, but terrible in knowledge and influence, stands idle near the aquariums; crazy criminal showdowns; a mysterious crypt, secret underground passages; hidden Guardian; the elusive Guardian; a missing girl - and many new and already familiar characters in breathtaking action!