Boris Akunin called the novel "I Don't Say Goodbye" the last book in the series "The Adventures of Erast Fandorin", thus drawing a line under the twenty-year era of cult detective stories that conquered the minds and hearts of millions of readers (the first book in the cycle, Azazel, was published in 1998) . The adventures of the legendary detective Erast Petrovich Fandorin end in the turbulent days of the revolution and the Civil War in Russia. Having received a bullet in the head in Baku ("Black City"), Fandorin miraculously survived, but fell into a coma. And he got out of it in an equally exotic way: the shot of a robber on the train, where Masa was carrying an unconscious gentleman, brought him back to life. Dramatic events and characters of a completely different kind than those that happened in good old Russia pursue the detective in the vast new, rearing Russia between Samara, Moscow, the Vologda province, Sevastopol, Taganrog and Kharkov. Red, and white, and green, and gray-brown crimson are drawn into them. The last thing Erast Fandorin will try to do is to catch a Bolshevik spy at the headquarters of the Volunteer Army... "I don't say goodbye" is a key puzzle in the world of detectives created by Boris Akunin…
