The third book in the "Grandson of Peter" series about the adventures of an otherworlder who burst into the consciousness of such a controversial and ambiguous figure as Peter Fyodorovich, the heir to the Russian throne. The main character plunges into emotional experiences connected with his relationship with his wife Ekaterina Alexeyevna, tries to weave intrigues in order to rise even higher, but ends up falling into the very traps set for him. At the same time, the book is also about heroic pioneers, achievements, and moving forward.