This time, the inventor of the Time Machine, Professor Terekhov, and his assistant, Yegor Volkov, who wanders through eras, fall into the hands of the insane FSB agent Rebus. Going crazy with the idea of universal domination and personal immortality, Rebus sends Yegor to 1919 with the task of pulling out a young, untalented artist from there. It is he, Adolf Hitler, who embodies the most monstrous evil, who will serve as a catalyst in the Installation that breaks through the space of the Universe. Yegor's next task is to move to the era of Prince Vladimir. The goal is to find and obtain the wonderful ring of the god Odin, which actually belonged to the disappeared brother of Professor Terekhov... In the wild North, Yegor encounters monsters that actually existed in nature, but remained only in fairy tales and legends...