The basis of the book is the idea of the theory and practice of the ancient Russian method of secret martial arts "The Tale of Igor's Campaign". We are led to it by an extensive analysis of the history of the secret martial arts of the Slavic peoples, their features, dating back to the early stages of the formation of the Slavic community in the 18th century BC. The book contains the full (!) text of the “Word” in the author’s reconstruction. The book will be of interest to everyone , who is engaged in martial arts, management and spiritual improvement. To everyone who cherishes our history, its secrets, and the heritage of our ancestors.