For some reason, dad left on a business trip at night, and a few days later mom and younger brother disappeared without a trace, and Shurka and Tanya were left alone. 'The raven took it away' - everyone around whispers. But what is this Raven and who will show the way to the road? The border between the city of Crow and an ordinary city is easier to cross than an easy one - but only one way. Only by realizing that Raven is everywhere in Leningrad in 1938, the fearless Shurka will be able to rebel against his gray kingdom. The childhood of Shurka and Tanya fell on a difficult time: the Stalinist terror, the war and post-war years.