Ravka is surrounded by bad weather and instability. And the young king Nikolay Lantsov is increasingly turning to dangerous soil at night. General Zoya Nazialensky witnessed the death of her mentor and the resurrection of her bitter enemy. Now all she lives for is protecting sinners around the world, securing Ravka's throne, and saving Nikolai. But while Zoe desperately searches for a cure for her king's mysterious illness, the sinners find themselves in danger: they try to turn their superpowers into something dangerous by subduing their will with a powerful synthetic drug. Meanwhile, the dark magic inside Nikolai is getting stronger. The only chance for salvation for him is to risk everything for the sake of saving Ravka and himself. Nikolai's inner demon is menacing and powerful, scarred by centuries of victories. But there are scars that cannot be healed, because they hide the secret wounds of the past and the secrets of whole worlds.