Russian Empire, 1913. The world is buzzing with news about archaeological finds in Tunisia, Greece, India... And the Russian “Bulletin of Theosophy” talks about Pavel Schliemann, the grandson of the famous Heinrich Schliemann, who discovered Troy and claimed the existence of Atlantis. It's time to go in search of traces of a lost civilization! Where? And if - to the Urals? After all, hypotheses are already appearing in the foreign press that it was he who became the second homeland of the Aryans. On the expedition of the Russian Anthropological Society at the Imperial St. Petersburg University, fate brings together young scientists, one of whom betrayed the other in the bloody year 1905. The “trump cards” are again in the hands of the informer, and he skillfully manipulates them: he wins the place of the group leader and almost wins the hand of his opponent’s bride. But the insidious plans collapse in an unexpected way. What is it, a reward or a punishment, if a turned away fortune throws you into the abyss not only figuratively, but also literally? Is there a way out?