"The Twelfth Directorate" is an exciting spy detective book written by the famous Russian writer Alexander Lukyanenko. In the center of events is an agent of the special services, who receives the task of exposing a traitor within his own department. The story is full of risky missions, danger and betrayal, which gives the book tension and dynamics. The author skillfully reveals the psychology of the characters, making the reader sympathetic to their exploits and difficulties. "The Twelfth Office" is an exciting book that will definitely want to stay in your memory for a long time after reading it.