A new series from the creator of the cycle "The World of St. Erinburg" Evgeny Gagloev! A long-awaited meeting with your favorite characters of the series "Mirralia", "Pardus", "Pandemonium"!There is always unrest in the giant metropolis of St. Erinburg… And not every problem can be solved by ordinary city services. Therefore, the Department of Security has come up with the idea of creating a special squad that will investigate the strangest and most mysterious cases when the efforts of the police will not be enough. A squad that will be at the forefront of the fight against the forces of darkness. This is how the "Avant-garde" appeared.The first task of this squad, consisting of young people with unusual abilities, is to investigate the mysterious murders of the heads of a large company. This is not an ordinary corporate war, there is clearly something more involved. What exactly? Nikita Legostaev, a young investigator, and his friends will have to understand this.Each novel in the cycle is a separate investigation, which, according to the laws of the genre, is resolved within the framework of one book. But fans of Evgeny Gagloev's wonderful universe will find more than one reference to events, characters, places and events found in other series of the author.