Thousands of years ago, a great ancient civilization flourished. A magical ceremony with two gold coins allowed the Chief Guardian of the Sun to prolong the ruler's life. However, the ritual coins were stolen by savages, and the state fell, losing the sacred artifact. And the relic itself has been lost for centuries.…In modern St. Petersburg, amateur detective Nadezhda Lebedeva gets caught up in a maelstrom of dangerous events. In the Hermitage, she was attracted by an unusual exhibit — a gold coin, the oldest discovered. An unknown person steals the coin, and the next day the charred body of the main suspect is found. All traces lead to a mysterious man who seems to have deceived time itself.