As a witch in the walled city of Chernograd, Kosara has plenty of practice taming rusalkas, fighting kikimoras, and brewing lycanthrope repellent. There’s only one monster Kosara can’t defeat: her ex the Zmey, known as the Tsar of Monsters. She’s defied him one too many times, and now he’s hunting her. Betrayed to him by someone close to her, Kosara’s only hope is to trade her shadow―the source of her powers―for illegal passage across the Wall to Belograd, where monsters can’t follow. Life in Belograd should be sweet, but Kosara soon develops a fast-acting version of the deadly wasting sickness that stalks shadowless witches―and only reclaiming her magic can cure her. To trace her shadow, she’ll have to team up with the suspiciously honorable detective investigating the death of the smuggler who brought her across the Wall. Even worse than working with the cops is that all the clues point in a single direction: one of the Zmey’s monsters has found a crack in the Wall, and Kosara’s magic is now in the Zmey’s hands. The clock is ticking, the hunt is on, and Kosara’s priorities should be clear―but is she the hunter or the hunted? And in a city where everyone is out for themselves, who can Kosara trust to assist her in outwitting the man―the Monster―she’s never been able to escape alone?