Siren-Mage. Book 1. Blood of the Drowning

In honor of the wedding, Imogen arranges a lavish celebration. She is given away by the king himself. The groom, a brave captain, successfully hunts down the bloodthirsty sirens, who are considered monsters on this island, and a monster, as is known, awaits only death.
The smell of the sea, crashing into the throne room, excites all of Imogen's senses. Dark magic hangs in the air, and a strange thirst within the heroine grows. Tormented by it, she steps onto the battlement and meets a handsome, cheeky stranger who claims to know her…
Following this, a series of terrible events and metamorphoses occur, revealing the secret of Imogen's origin. She is forced to flee, and the stranger, who turns out to be the ruler of the neighboring kingdom, Theodor, offers her help—but in exchange for one mysterious condition.
Driven into a corner, she embarks on a journey with him through waters teeming with undead. They are driven by duty, she by fear, and both struggle to overcome their passionate and possibly lethal attraction to each other. The forbidden love against the backdrop of dangerous adventures creates incredible tension.
Imogen knows she is being pursued, and the only way to defeat the monster is to become one herself… At this moment, the heroine's main dilemma is revealed: to accept her nature or to fight against it to the end. The struggle against destiny, inner demons, and sacrifice for love become the key themes of the novel.