The summer holidays are ending, and Mila will have to return to Trollingburg. Ahead of her awaits a year full of dangerous adventures: a journey to Alidada - the Black City, where it is always night and never morning, to the Street of Wandering Shadows - the only place in the world where the shadows do not obey their masters, to the damned Valley of Oblivion, from where no one ever didn't come back. And most importantly, Mila is being pursued by a mysterious long-haired stranger, whose face always remains in the shadows...