Archaeology—surely, nothing could be more peaceful than it. Yet the hoard found near Khabarovsk brought scientists not worldwide fame, but death at the hands of merciless killers. And only the expedition’s leader managed to survive the terrible slaughter—a young scientist named Mіra, the fairy of the Green House. The brutal crime shook the Secret City, because there were all grounds to believe that the daring criminals had taken possession of an artifact from the Earth’s oldest civilization— the asurs. The same ones toward whom the Great House of Nav acted according to the principle: “Kill and don’t investigate!” But reality surpassed even the boldest expectations. Although the Khabarovsk casket had nothing to do with asurs, its discovery put the very existence of the Secret City at risk…