The book includes the novels "Journey around the Volcano," "Ocean and Boat" and the novels "Plateau of Dr. Cherkasov," "Meeting with the Unknown," united by the theme of the development of the North. Many cities and towns were invented by the author, but the fate of the heroes, the trials that meet their harsh northern region are real. The theme of the development of the regions of the North and Siberia, human work and extreme conditions is continued by the works included in the second volume: the novels "The Call Signs of Zurbagan," "Planet Haris" and stories.