Every city contains secret places. Moscow in the tumultuous 1990s is no different, its citizens seeking safety in a world below the streets — a dark, cavernous world of magic, weeping trees, and albino jackdaws, where exiled pagan deities and faerytale creatures whisper strange tales to those who would listen. Galina is a young woman caught, like her contemporaries, in the seeming lawlessness of the new Russia. In the midst of this chaos, her sister Maria turns into a jackdaw and flies away — prompting Galina to join Yakov, a policeman investigating a rash of recent disappearances. Their search will take them to the underground realm of hidden truths and archetypes, to find themselves caught between reality and myth, past and present, honor and betrayal . . . the secret history of Moscow.